The act of Fucking someone in the anus until you cum, then taking a full sized chicken wing and putting it in the anus filled with cum. Then one of the participants eat the cum soaked chicken wing.
Me and Ashley got so drunk she let me give her a Rusty Buffalo
by RustyBuff17 July 14, 2021
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A person so consistantly angry, cantakerous, grumpy or mean that they can only be likened to an American Bison getting it's taint scrubbed with a wire brush.
God, your dad is a jackass.

Yeah, he is a regular rusty buffalo...
by SlamHog November 16, 2009
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Donut Operator thinks it is a thing and he was right.
"the ol rusty buffalo, sounds like something on the urban dictionary"
by jaquavywavy August 13, 2022
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