One Upper 

That person who has to be better at everything. Even when they shouldn't want to.

"I remember once as a child I accidentally killed a squirrel."
"Aww that's nothin' bro. I used to kill animals all the time."
"Really?! What the hell is wrong with you freak?
"Oh you think you're disgusted in me? You should see how disgusted I am at me!"

A One Upper

One Upper by GroceryClerk March 2, 2016

one-upper 

A one-upper is someone who always has to be bigger and better than everyone else. If you say you are drunk, they exclaim with how much more they have drank than you.

Although Matt may seem mediocre, he is actually a one-upper; He must always top your story with one of his own.

one-upper by Drew Workman January 3, 2008

Pathological One-upper 

One-upping to such a degree, involving, caused by, or of the nature of a mental disease, where an upper is incapable of ever stopping and must refute any up of a fellow upper, even if the up makes no logical sense at all.

Regular One-upper: Dude, i bought a Jaguar last week. It's sick.
Pathological One-upper: Nice. I got an Aston a few days ago...
Regular One-upper: My Dad's getting a Bugatti Veyron today!
Pathological One-upper: That's nothing. For that much money you won't even get an apartment in my building. I have six.

Pathological One-upper by Wannaapppp! September 11, 2012

one upper 

A person who always has a better story. If you killed six goats, he or she killed 23. Most of the time they will get angry because you told a story about ONLY killing 6 goats.

Person 1: Wow, this is a nice view. How much land do you own?

Person 2: Umm, I think about 69 acres.

Person 3(One upper): YOU own 69 acres!?!?!?! MY UNCLE OWNS 178!!

one upper by Drew Workman January 3, 2008

one-upper downer 

(n.) Someone who tries constantly to out-do your bad personal experiences with their own bad stories, which in their eyes, is always worse.

Me: Oh man, I just had the worst day at work! I got fired...

Tim: Oh, sorry about that. Mine wasn't too much better. I forgot to save a really long document before shutting down my computer. Such a bad day!
-----

Tim's a clear one-upper downer

one-upper downer by The Communicator November 11, 2009

one upper 

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.

Chad: Dude, I got a V-6 Mustang today, its Lime Green!
Todd: Oh, but I just got a Roush 'Stang with a supercharger thats laying down 400 to the wheels dawg.
Chad: -_- (gee what a one upper)

one upper by Marcelo D. April 10, 2006

one upper 

someone who needs to make themself feel better by making themself seem greater than everyone else

someone who thinks they know everything, everyone, and has done everything you do, but better

-ADRIAN CLEEK OF DALLAS TEXAS

-Guy 1 "I built a robotic roach the other day, look,"
-Adrian "So what, my class won a battle bots tourny because of my ideas on how to build it."

-Guy 1 "What is heat lightning again?"
-Adrian "Heat lightning is made when ice particles in the clouds rub together, then the friction it makes creates a lightning bolt"
-Teacher "It's a normal lightning bolt, but instead its red, and makes no sound...Adrian, dont try to be a one upper."

one upper by qwertyismyname January 6, 2008