Top Definition
This is where the man performs oral sex with the woman's anus while inserting his fist into her vagina.
This is the female version of the Rusty Trombone.
Last night while fisting my girlfirend from behind and with her ass in my face I decided what a perfect opportunity to perform a Rusty Plunger.
by College Puke November 14, 2009
5 Words related to Rusty Plunger

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