when an online gamer goes into a lobby (halo, call of duty, etc) then quits right before the game starts just to annoy people.
gamer #1 the game is about to begin with a full lobby. this is gonna be awesome.

gamer #2 f@#k, we got lobby hoppers. this game is gonna suck now.
by the guy who hates campers December 8, 2010
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