While having anal sex the "pitcher" fills the "catcher's" rectum with urine. The "pitcher" then pulls out creating a mushy brown mixture that rises out of the "catchers" ass.
I gave the girl i met at the bar last night a rusty cupcake. She wasnt too happy.
by christbait September 02, 2006

7 Words Related to rusty cupcake

While having anal sex the "giver" fills the "catcher's" rectum with urine and semen. The "giver" then pulls out creating a mushy brown mixture that rises out of the "catchers" ass.
I gave the girl i met at the bar last night a rusty cupcake. She wasnt too happy.
by christbait September 01, 2006

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