One-upmanship 

Is the art or practice of successively outdoing a competitor, rival or enemy/friend.

X: aww i like kati
y: ohhh yeaahh...you doo do yaa (he (y) doesn't like her but just wants to ruin the chances of them getting together, so behind (x's) back gets her (Kati) to go out with him, X is annoyed about them getting together but pretends its not bothering him, meanwhile X is using the same M.O 'method of operating' to get one back.

The one-upmanship escalates until either one stops, or they realise there both at it..(which would quite amsuing for them, or embarrasing.. depends how you take it ;)

One-upmanship by LJcalvert May 9, 2010

One-Upmanship 

Expression to describe the dedication shown by someone who is amazingly sentimental with their passion to "one,-up" an opponent, who may or may not actually be concerned with the ability of the former.

"Yo, I tried to get a handful of them zoom-zooms, but several trust fund bitches were all about that one-upmanship, offering over cost for a bulk amount that should receive bulk rates.."

One-Upmanship by UpallNite December 11, 2021

Faggot One-Upmanship 

When gay guys compete as to who can be the most gay.

After Biden went out of his way to appoint tropishly gay individuals to his administration, Trump praised Arnold Palmer's cock in front of a crowd and then lived with Elon Musk for four months in a the most embarrassing game of Faggot One-Upmanship ever played.

Faggot One-Upmanship by Publius0987 September 18, 2025