Top Definition
during sexual intercourse, the sound two bodies make while knocking boots
that girl was flap flap all over the place.

did you hear about her raw flap flap wetness last night?

by your mom's name goes here June 03, 2006

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A flap-flap is an alternate name for winged animals mostly pertaining to fowl and bats. Other mammals that have folds of skin that can act like wings such as sugar gliders and flying squirrels. Insects and other mammals that use their extra skin to maneuver can be their own genus of flap-flaps including stingrays, dragonflies, butterflies and honey bees with the exception of wasps who are just assholes.
Flap-flap... Makes me smile just saying it
by Itsybitsymissy April 23, 2016

The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt