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To insert any part of one's foot into a woman's vagina.

A sexual act whereby one partner inserts any part of the foot into a woman's vagina.

A description of a woman's vagina while there is any part of a foot inside it.
"I hope you washed your foot before you gave her a that slippery flipper."

"Does she love you enough to be your slippery flipper?"

"I slipppery flippered her all night."

"They got kinky in bed and he put on the slippery flipper."

"He jammed his foot in her vagina, wearing it like a slippery flipper."
by hulk smashed January 23, 2013