A one upper is one who feels like they need to be better than everyone else, so they constantly "one-up" anything that anyone says.
Kengs Likes To 1up Any One On MA. he is a class five one upper!
by iron man2626 September 10, 2009
A one upper is one who feels like they need to be better than everyone else, so they constantly "one-up" anything that anyone says.
Mariah Wright is a one upper.
by rosssdabosss April 29, 2014
Someone who always has to beat someone else's story by 'one-upping' them. Such people are usually making these stories up, but seek to lie to try and seem more impressive to the audience of the first person's story.
George to friends: I hit three 3 pointers in a row at basketball
Lee to friends: I hit seven 3 pointers in a row at basketball
Friends: You are such a one-upper, Lee
by pandaman24 June 12, 2013
* Calling everyone out, stating that you are indeed better than them without actually saying so.
* Too imply that you are or have done something long before anyone else had even thought about doing it.
Me: Fuck ya we get paid tonight its the 15th!
Hanson: Yeah well i get paid an hour and a half before everyone else!
Everyone: ZOMG WTF Who says that? And how is that fucking possible that you get paid 1.5 hours before everyone else!?!!!?!?!?! Dude your a fucking One Upper!
by AD2 March 19, 2007
A person which when in conversation has a story to tell whether real or imagined, about a specific idea, person, place, event, or thing, that is more exhilarating, spontaneous, better, worse, shittier, greater, higher, lavish, outstanding, superior, superb, advanced, complex, sophisticated, splendid, wonderful, magnificent, improved, brilliant, admirable, excellent, terrific, marvelous, surprising, amazing, breathtaking, enhanced, thrilling, astonishing, fantastic, shocking, surprising, astounding, exciting, extraordinary, far-fetched, stimulating, electrifying, wonderful, stupendous, invigorating, or glorious then that of the previous. This person may also appear to be more cocky then confident or extremely egotistical. Also see hater, Jew.
Danny McLOvin: Yo, I just bought a new Benz by myself without even working the shits hot.

Scottie McTalks: That shits only a C class; my dad has been working for 30 years, 12 hour days and has a S600, apartment in NYC and a house up in HillBilly land.

Scottie McTalks is a one upper when he refers to his father having something better then McLovin, and when he hates on McLovin out of jealousy because of his success and accomplishments.
by D. Mclovin January 08, 2008
Danny Irwin, from arizona (or ireland er w/e)
Guy 1: I went o alaska for vacation last winter
Danny Irwin: Yea? I went to the moon last year!!

Guy 2: Jesus danny, why are you such a one upper
by Coach22 August 12, 2006
a person who has to have or do things better than the person they come in contact with.
stacy just bought a newer cell phone than us, she is totally a one upper.
by hahahaha September 06, 2003

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