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This is to describe the female labia area which is stinking of fish.
The flaps hang quite low and are smelly.
That girl has fish flaps! I can smell them from here!

Jim: I went with this girl the other night and she has fish flaps!
Cuthbert: Thats disgusting! I hope u didnt muff her?!
by Gayley August 19, 2006
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A fanny, which smells like fish and has not been washed for a while after being jebbed!
''Man, Did you smell her fish flaps?''

''You wouldn't believe what came out when I parted her fish flaps''

''Ooooo she's got big fish flaps''
by Dee.Dee April 12, 2010
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