Definitions by The Master Shake

flop glop 

Menstrual effluent. Can be used as a noun or a verb.

#1 Don't go down on a chick when she's on her period, or you'll get flop glop all over you.

2# I went down on a chick last night and got flop glopped.

flop glop by The Master Shake June 20, 2007