Skip to main content
Urban Dictionary Merch
Your favorite words on things you can wear, drink from, read, or give to a friend.
The Urban Dictionary Store sells gifts you’ll have to explain.

mastonism 

The belief that furries are the worst of the worst and should be exterminated like the jews
Do you believe in MASTONISM? No, you must be a fucking furry
mastonism by PMcPerson November 27, 2017

MasterDumping

The act of jacking off while taking a shit
he's probally Masterdumping that sick bastard
MasterDumping by West G. July 2, 2011

Masterism 

I am awesome because I am the master of masterism.
Masterism by nickvet419 March 12, 2010

masturhumping 

When you hump a pillow, bed, woman, etc., and you put your hand by your penis so that as you hump up and down, your hand rubs against your penis, giving you the sensation of masturbating while you are humping.
I was so horny after watching the shake-weight commercial that I decided to have a quick masturhumping session.
masturhumping by Masturhumper December 29, 2010

Magorium logic 

A paradoxical statement that seems to have a flaw in its logic, yet none can be found. Term refers to the film "Mr. Magorium's Wonder Emporium," where this logic is used frequently.

In some cases, Magorium logic may appear somewhat circular in nature, with the logic pattern looping back upon itself.
ANNE: "You can't know something you don't know because you don't know it."

JASON: "That's an example of Magorium logic if I ever heard one."
Magorium logic by JasonMc92 January 20, 2011

mysterium 

a confusing and impossible to understand situation or place. Very complex. Only nerdy niggas will have a chance to understand a mysterium. Everybody else don't even try, your head will explode.
James: "Yo Will, girls are a mysterium. I'm trying to figure out why they crazy as hell"
Will: "You better stop man before your head explodes. Shit's crazy"
mysterium by Smart Nigga 18 August 22, 2008
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.
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.
Word of the Day on November 8, 2026
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.
"Hey, see that chick over there? She's pretty enough to be an ulzzang. :D"
ulzzang by `r i k kit t y February 26, 2008
Word of the Day on November 7, 2026
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).
Person A: "That scene was a direct homage to an unreleased 1982 Japanese indie film."
Person B: "Wow, EBK."
EBK by silwhett November 5, 2026
Word of the Day on November 6, 2026
A seemingly endless debate with a idiot
I don't know man im not ready for yap trap stupidity today which always tries to suck you into it
Yap Trap by WolfieSnack November 4, 2026
Word of the Day on November 5, 2026
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.
Democrat 1: What is your prediction for the 2024 presidential election?
Democrat 2: Well uh, Blexas!
Democrat 1: You've been saying that since 2008 though.
Blexas by Tritonist June 14, 2021
Word of the Day on November 4, 2026

briefcake 

"Did you check out the briefcake in courtroom C?"
briefcake by Ben Frey April 6, 2006
Word of the Day on November 3, 2026
Load more