1up 

An extra guy. You'll need a lot of these if you suck at a game.

1up by e-vis November 5, 2003

1up 

1. (v) when somebody just tries to over power things you say to rule the conversation, or plainly, the motherfuckin world so theyre just hella doper than your ass for some stupid ass reason..

2. (n) the knock who wont stop thinkin theyre the shit yadida.

1. (v) Joe Shmoe: Man, look at my fucking RAZR, its silver!
John Doe: I have a RAZR, too. But hey! Mine is gold!
Frank: John, quit trying to 1up. You can't rule the world, dumbass.

2. Jane Doe: My outfit shits on your outfit. All of my outfits stay shittin on everybody outfit right quick. Look at me, model status tho. Deeeamn, who's that celebrity. Oh, me!
Diana: Jane, shut the fuck up you 1up.

1up by 1UPYOURFACE January 2, 2009

1up 

literally means "get a life". from the super mario brothers when mario gets a extra life.

person #1: i dont have a girlfriend because i paly video games all day.
person #2: 1up motherfucker.

1up by !!!!!!!!!!!!!! June 10, 2007

1UP 

It means "get a life".

"If you are reading this, 1UP."

1UP by Occifer April 21, 2008

1up 

When you and or one of your classmates get a boner in class, and are called up to the front by the teacher, one must scream 1up and a friend will take your place at the front instead to save you from embarrassment.

*Mrs. Gibbons calls up Tony*
Tony proceeds to say loudly: 1up!
Eric then volunteers to take Tony's place and saves him from embarrassment.

1up by D-bag69 February 11, 2018

1up 

In supplier terminology, a secretive name for the common psilocybe cubensis mushroom.

It is usually used only to be discrete (e.g. when texting or talking in public); sometimes to make yourself feel cool for using unique terminology...

daGDnig: how much 1up dis kid want cuzz?

Brian: he want a lb but i talked him down 2 a qp cuz he aint hav da cream.

daGDnig: dam u done it already? thas wassup.

1up by daGDnig May 17, 2010

1up 

After pounding your beef whistle into your significant other's starfish, you proceed to slap them on the forehead with your member thus applying a veritable mushroom stamp for them to display proudly.

Did you give that girl a 1up after pounding her pooper?

1up by mr. roach February 14, 2007