Top Definition
This is when a guy masturbates upside down and cums on his own face. Often licking up the remaining cum.
Dude I was was so lonely last night I gave my self an Upside Down Pineapple Cake.
by bullpen 6/3 May 08, 2011
11 Words related to Upside Down Pineapple Cake
The girl is upside down with her head hanging off the bed/couch and she is giving the boy a blowjob. When he cums she keeps it in her mouth and proceeds to spray it all over his body, hence the topping on the cake.
Boy1: dude, why are you all sticky?
Boy2: girlfriend tried something new, the upside down pineapple cake!
Boy1: you need to end that relationship asap.
by angelD2010 March 08, 2009

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