Someone who needs to be better than you because of there insecurities. No matter what you say about anything they will top it.
Say Alec the great tells a story about saving one little panda cub from a three alarm house fire. Dominguez the "one upper" will then tell a story about how he saved Panda's from dying from extinction.
by jordanski April 7, 2008
Get the one uppermug. 
Someone who thinks they know everything but knows nothing.A polite way of calling someone a smartass around proper people or company.
by swissmocha April 1, 2005
Get the smart onemug. To sleep with someone once and that's it. Usually done to someone you're just not that into or has 2+ brat kids you can't afford or don't want to take care of. A one night stand, same as "hit it and quit it" and "fuck and chuck." Named after the NBA rule.
George Clooney and John Mayer are famous one and doner's.
Ted:"Man I wish I could go out tonight and pick up some strange but the wife is up waiting with the kids."
Bill:"Screw all the drama, taking care of kids, expense and sexual monotony a relationship is..I'm a one and done kind of guy!"
Ted:"Man I wish I could go out tonight and pick up some strange but the wife is up waiting with the kids."
Bill:"Screw all the drama, taking care of kids, expense and sexual monotony a relationship is..I'm a one and done kind of guy!"
by T0mmyd October 16, 2013
Get the One and Donemug. When a guy devolopes infatuation with a girl he is not involved with, or maybe just a friend thinking he is in love with that girl
I love that girl, i think she is the most beutiful girl in the world. She is funny, loving and I just want to be with her for the rest of my life, to bad she doesn't know me...
by lucid March 3, 2005
Get the One-itismug. To get drunk or start drinking before the hang over from last night has worn off.
Thus having something to "tie onto"
To tie one drinking session to another before the effects/consequences of the last have expired.
Thus having something to "tie onto"
To tie one drinking session to another before the effects/consequences of the last have expired.
Guy 1: Hey, what's going on there?
Guy 2: I'm hungover as fuck, they had quarter pitcher night at Jake's last night.
Guy 1: So you're just going to hang out?
Guy 2: Fuck it lets tie one on.
Guy 1&2: *Crack open beers and commence drinking*
Guy 2: I'm hungover as fuck, they had quarter pitcher night at Jake's last night.
Guy 1: So you're just going to hang out?
Guy 2: Fuck it lets tie one on.
Guy 1&2: *Crack open beers and commence drinking*
by QWERTY1 July 30, 2008
Get the tie one onmug. by not an obsessive fan April 10, 2012
Get the One Directionmug.