epeening 

The blatant act of telling everyone, showing off or bragging about how big your epeen is. Most common in online games when someone links or describes a bit of loot they have just obtained which is then immediately followed by someone then linking or describing more and better loot they obtained weeks before and hadn't stopped bragging about.

John: look what i just got <Decent Peice of Epic Loot>
Doe: <Uber Epic loot><More Uber epic loot><Even more Uber epic loot><EVEN MORE Uber epic loot>
John:enuff with the epeening mmmkay?

epeening by GlycerineOxide December 15, 2010

Silent E-Peening 

The act of gloating, or rubbing a victory in someones face, without actually doing or saying anything. Can also be silent epeening when the person ahead in the competition will not acknowledge the other participant

Two people are playing a fighting game, one just won the game land-slide. He's doing nothing but sitting there not acknowledging the other person talking to him. "Stop your fucking Silent E-peening you faggot"

Silent E-Peening by Beecels May 28, 2010