To outdo a deed of another.
I can one up that.
by Tailor August 29, 2003
Get the one up mug.
being better that something or beating something real bad
i think john gonna one up tonny in that fight..or
that backflip off the dumpster is gonna one up jumping off that building in that comp.
by Donovan Debrown August 4, 2007
Get the one up mug.
An extra man, Extar life, something Mario needs alot of.
Dude, if you jump over that piranah plant, over the lava, onto the turtle, bounce off that, land on that tunnel and press 'down' you go in a secret level, there's a one up.
by Treg September 22, 2003
Get the one up mug.
:When a male places a female's leg on his shoulder during sexual intercourse, usually following the missionary position.
"Yaa! Stacie, I'm going one up so I can ram you deeper bitch! MMM, now make a wish for daddy."
by DJ Newman October 9, 2003
Get the one up mug.
When a couple is having sex doggy style and the guy pulls out and acts like he "accidentally" puts it in her ass.
-girl- "He tried to one up me last night, but I'm not down with anal sex"


-guy- "We were a little drunk so i figured i'd go for the one up... but she wasn't a fan."
by Nicky NOTORIOUS March 23, 2004
Get the one up mug.
"I was one up with him when I told him I did not love him anymore instead of stringing him along".
by nikki February 23, 2005
Get the one up mug.
another way of saying "fuck you!"
the term is taken from the middle finger gesture. When you flip someone off, youre holding "one up"
Guy one: Ayo, your moms is a milf.
Guy two: One up bitch!
by new slang January 17, 2005
Get the one up mug.