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99.9%
A) A nice ass way of saying it gets most of the job done
B) A term used by companies so that they don't get sued when their product doesn't work 100%
C) not quite enough; almost
B) A term used by companies so that they don't get sued when their product doesn't work 100%
C) not quite enough; almost
Related Words
99.9% • 99/9 • 99.9...% Sure • 99.95 • 99.997 • 99.999999% • I’m better than 99.9% of all other UrbanDictionary users out there. • I’m better than 99.9% of all the other people out there • I’m better than 99.9% of all the other UrbanDictionary users out there • I’m better than 99.9% of all the other users out there
99/9
An expression of joy, happiness and tranquility.Pronounced nintey nine nine it's used by Toyota Prius owners when their MPG indicators max out at 99.9 miles per gallon.
99/9 by vivian darkbloom May 25, 2007
99.9%
99.9% by thismyhandle June 5, 2026
99.9...% Sure
Sometimes people, when expressing how certain they are of something, say they are 99% sure of something. Oftentimes, however, they choose to add validity to their statement by adding 9s behind the decimal place, thinking that will prove their words to be truth beyond belief. We can create a scale of how sure a person actually is based upon the numbers of 9s behind the decimal in their percentage:
99.9% sure: 99.9% is absolutely rock-solid; a person who says they are 99.9% sure of something is presenting insight with undoubtable knowledge of the topic. This information can be counted on.
99.99% sure: 99.99% is still measurably accurate. Usually, 99.99% is reserved for situations in which there still remains room for unexpected events. This information can still be counted on, but watch out.
99.999% sure: 99.999% represents the beginning of a slippery slope of doubt. 99.999% generally is used for opinions or statements that cannot be backed with empirical evidence. Most people who frequently express political beliefs will say they are 99.999% sure of something. Be careful before believing someone who is 99.999% of something.
99.9999% sure: At this point, we cannot be completely sure of how positive someone is of something. If a person says they are 99.9999% sure of something, it is basically a 50/50 situation.
99.99999% sure: If a person says they are 99.99999% sure of something, they genuinely have no fucking clue what they are talking about.
99.9% sure: 99.9% is absolutely rock-solid; a person who says they are 99.9% sure of something is presenting insight with undoubtable knowledge of the topic. This information can be counted on.
99.99% sure: 99.99% is still measurably accurate. Usually, 99.99% is reserved for situations in which there still remains room for unexpected events. This information can still be counted on, but watch out.
99.999% sure: 99.999% represents the beginning of a slippery slope of doubt. 99.999% generally is used for opinions or statements that cannot be backed with empirical evidence. Most people who frequently express political beliefs will say they are 99.999% sure of something. Be careful before believing someone who is 99.999% of something.
99.9999% sure: At this point, we cannot be completely sure of how positive someone is of something. If a person says they are 99.9999% sure of something, it is basically a 50/50 situation.
99.99999% sure: If a person says they are 99.99999% sure of something, they genuinely have no fucking clue what they are talking about.
99.9...% Sure:
Connor: I am 99.9% sure that the sun will rise tomorrow.
Daniel: I am 99.99% sure that the next Battlefield game will be kickass.
Evan: I am 99.999% sure that Dirk is a homosexual.
Dirk: I am 99.9999% sure that Evan has been raped in the shower.
Johnny: I am 99.99999% positive that Socialism will prevail.
Rebecca: I am 99.999999% certain that I was a cow yesterday and will be again tomorrow.
Connor: I am 99.9% sure that the sun will rise tomorrow.
Daniel: I am 99.99% sure that the next Battlefield game will be kickass.
Evan: I am 99.999% sure that Dirk is a homosexual.
Dirk: I am 99.9999% sure that Evan has been raped in the shower.
Johnny: I am 99.99999% positive that Socialism will prevail.
Rebecca: I am 99.999999% certain that I was a cow yesterday and will be again tomorrow.
99.9...% Sure by Kickpuncher666 May 16, 2011
I’m better than 99.9% of all the other UrbanDictionary users out there
More from Urban Dictionary
No Surprises Wedding
A "No Surprises Wedding," or NSW, is a wedding invitation designation that tells attendees that there can be no unplanned announcements, engagements, events or speeches at the wedding - all actions must be pre-approved by the couple. Anyone who performs an unapproved "surprise" will be asked to leave the wedding early.
This designation comes from Reddit, where so many stories of bad wedding behavior indicated a need to communicate expectations for the wedding behavior of attendees.
This designation comes from Reddit, where so many stories of bad wedding behavior indicated a need to communicate expectations for the wedding behavior of attendees.
You are cordially invited to the nuptials of Brian and Tom on October 31 at noon.
Please note that this wedding is child-free (under 10) and a No Surprises Wedding (NSW). Reach out to wedding planner Sami Smith to request approvals or exceptions; please note that exceptions will be rare. Limited child care for under-10s will be available. All approvals will be noted and included in planning. Unapproved, or surprise exceptions, will result in guests being asked to leave.
Please note that this wedding is child-free (under 10) and a No Surprises Wedding (NSW). Reach out to wedding planner Sami Smith to request approvals or exceptions; please note that exceptions will be rare. Limited child care for under-10s will be available. All approvals will be noted and included in planning. Unapproved, or surprise exceptions, will result in guests being asked to leave.
No Surprises Wedding by dbdefenestrate August 27, 2023
Word of the Day on November 8, 2026
ulzzang
Ulzzang true definition is "best & "face" = best face in korean. They are basically people with above average looks, sometimes with the use of photoshop and haduri who post their pics online, some becoming internet celebrities.
ulzzang by `r i k kit t y February 26, 2008
Word of the Day on November 7, 2026
EBK
EBK stands for "Elite Ball Knowledge." 1 In internet slang, "ball knowledge" originally referred to a deep understanding of football/soccer or basketball, but it has evolved into a broader term for having a highly sophisticated, deep, or niche understanding of any specific topic (such as music, movies, or subcultures).
Yap Trap
Yap Trap by WolfieSnack November 4, 2026
Word of the Day on November 5, 2026
Blexas
Texas is categorized as a swing state in presidential elections, but has voted for Republicans more times than for Democrats in recent history. As such, as demographics change political alignments, some Democrats believe that Texas will vote blue, or Democratic, due to their Hispanic and African American voters, who often align themselves with the Democratic Party's liberal wing.
Blexas has been cited as possible in the upcoming decades, but only if Democrats continue to win the Hispanic vote in bigger margins.
Blexas has been cited as possible in the upcoming decades, but only if Democrats continue to win the Hispanic vote in bigger margins.