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
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A derivitive of the term "big ups"
(noun) origin - Jamaican 1980s. singular and plural.
1. An expression of support or encouragement.
2. An expression of remembrance.
"Donald gave Mike one ups on a good play"
by Bilbo Bigguns March 17, 2010
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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
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A marijuana smoking game in which you pass the spliff around a group and each person takes one more toke than the last. This goes on till there are not enough tokes left in the spliff for the next set of tokes.
Jeff - Lets play one up! I'll start: *holds up hand with 1 finger raised and takes a toke*

Jim - *takes two tokes and holds up 2 fingers*

Emma - *takes three tokes and holds up three fingers*

Jeff - *takes four tokes and holds up four fingers*

Jim - *takes five tokes and holds up five fingers*

Emma - *takes six tokes and runs out of fingers*

and so on...
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To exceed someones expectations

To add something extra to make something better than the usual
I'm going to one up everyone on this assignment!
by Dansysk October 10, 2014
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: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
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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"

or

-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
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