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When a person/animal falls to the ground and starts to flop around almost like they are having a seizure... This could be due to an actual seizure, drunkenness or a bout of rofl due to some hilarity that has ensued among other things...
Dude... why was that girl flopping around like a fish on the floor last night?

She got so drunk that she started doing the bacon
by dragonstar87 June 07, 2010