A flounder fuck, sometimes referred to as a flounder fucking, is when you are participating in sexual intercourse with a women and you make her pussy so wet that actual, legitimate fish start to inhabit the women's vagina.
Cj: Yo I fucked that bitch so hard last night

Logan: Damn man, you gave that bitch a flounder fuck.
by smoke the ganja September 18, 2016
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A flounder fuck, sometimes referred to as a flounder fucking, is when you are participating in sexual intercourse with a women and you make her pussy so wet that the penis turns into a fish and swims through the vagina.
Jhon:Dude guese what.
Joe:what?
Jhon:Me and Shania are gonna flounder fuck tonite.
by Alien have no butholes November 8, 2016
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