Q: What's Mike up to this weekend? A: Since his girlfriend is away he's probably gonna sit home and pound the flounder.
by FunnyMFer March 30, 2010
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Um well fucking yourself...
Masturbation
What your mom does at night...
She was pounding the flounder.
by Did bish February 26, 2016
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"Did you get caught pounding your flounder when your parents came down for the family orgasm"
by echzthskltiu March 21, 2009
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For one to have intercourse with a third-wheel.
John should have a sweet night, said he'd even have a go at pounding the flounder! Prim 👌
by TheFlameBurnsWickr February 24, 2016
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