1% 

A segment of the population (and originally the biker population) defined by behavior that is morally incomprehensible to most people. A common (and by some accounts required) 'feat' to earn "%1" designation: To have eaten a woman out while she is on the rag.

Also, refers to the known killer(s) within a biker gang by it's members. Though this is falling into disuse.

1%'s most common meaning is simply "crazy", with the specific connetation of an unknown hidden deeper direction of the one who is 1%.

"No way should you deal with that guy, he's 1%"

1% by Brendan October 10, 2004

1% 

What someone texts you if their phone is on one percent, they can't get to a charger, and they are nice enough to inform you why they won't be potentially texting you. Could also be used as an excuse not to text someone.

"What are you doing next weekend?"

"1%"

1% by ill.matic_ September 8, 2015

1% 

A segment of the biker population, comprising about 78.3%, that imagine themselves to be outlaws.

Proud to be 1%!

1% by timecube June 17, 2004

1% 

A nickname given to a person who does the following

*Whistles way too much
*Says random annoying things just to get attention
*Constantly tries touching you
*Has weird lame obsessions (EX. Charlie brown/Superman)
*Is super tall (kinda giraffe like)

Carly: Hey Wyat stop being such a 1% its really starting to piss me off!
Wyat: I cant help it! once a 1% always a 1%...I cant change it I was just born like this! Can you tell me what 1% really means?
Carly: Well it means way more then this definition on urbandictionary.com but I wont ever tell you!
Wyat: (starts LOUDLY whistling)

1% by Parrot Luver January 23, 2011

1% 

The most terrifying thing anyone could ever experience.

The effect of watching TikTok for 4 hours while at 100%.
Mark: MOM MY PHONE IS AT 1%
Marks Mother: That’s what you get for watching TikTok too long..

1% by SweeperzzCreeperzz January 5, 2020

1% 

someone that is most likely in a bikie gang that sells crack cocaine. These people can be seen in 21 jump street and in rough neighbourhoods all around the world.

"I got a bad feeling about this guy"
"Why?"
"I think he's 1%"
"shit"

1% by notshrek May 16, 2016

1% 

A piss weak attempt to pick someone up (liking a photo or a lame comment)

Scotty is throwing down those 1%s incase it doesn't work out with his missus.

1% by sitcheh August 23, 2017