Patty-Knock

a fetish where the deliverer holds the recipient on their lap, with the recipients feet over their head. the recipient then proceeds to knock the deliverers head down to the ass of the recipient. For added pleasure you may add a buttercream pie on top of that ass, or the deliverer may put on a beak to resemble a bird, also known as patty flocking.

Guy 1: "Damn, that chicks lookin good."
Guy 2:" I'd patty-knock that bitch up."