Flabberbate
When you become so confused and flabbergasted that you just sit down on the spot and masturbate.
Girl: That was some great anal!
Boy: Thanks!
Girl: BTW, I'm a guy.
Boy *sits down and flabberbates*
Boy: Thanks!
Girl: BTW, I'm a guy.
Boy *sits down and flabberbates*
flabberbate
When a man with a big big belly grabs, shakes a giggles his belly while at the same time fakely moans in pleasure. A false substitute for masturbate.
Mark wanted to show his pleasure from the situation, that he lifted up his shirt, grabbed his belly and began to flabberbate.