another name for extreme ping pong.
Gnop is usually play in an unfinished basement with two man teams.
by Dave Tillges August 06, 2008
A photoshopped image of someone's face where the artist has scaled down the facial features in comparison to the rest of the head, thus making the target look rather silly.
Michelle from pop idol is a rare example of a real-life gnops.
by Canker January 12, 2004