An example of one-up is when you always feel the need to correct everyone around you to make yourself look smarter than them.
transitive verbone-upped, one-up·ping, one-ups Informal
(third-person singular simple present one-ups, present participle one-upping, simple past and past participle one-upped)
- (idiomatic) To outdo, to do something slightly better than a competitor's prior effort.
- Every year the neighbors try to one-up each other with their holiday lights.
- (video games) An additional life or an object that increases the player's number of chances or "lives" by one.
- If you hit that block, you can get a one-up.
(plural one ups)
- (video games) An additional life or object that gives the player an extra chance to play.
- If you hit that block, you can get a one up.
Almost always written 1UP.