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1. The act of female masturbation

2. Oral sex performed on a female
"I spent last night frosting the cupcake for Michael's viewing pleasure"

"Last night I frosted Jenny's cupcake"

by Jenny C. Melons January 16, 2006
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2
when a male makes circular motions around the outside of the vagina with his penis while cumming
Tod: Yea dude, I was frosting the cupcake last night with Rebecca.
Romeo: Wow dude I need to do that.
via giphy
by crupcaqke October 13, 2016
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