Flashfuck

1. Sex so fast that you don't even realize it's over when she's already dressed and leaving.

2. A flashbang grenade.

"That wasn't even 5 mintues"
*door slams, man looks around confused*
"Was that a flashfuck?"

by Spartan A007 January 15, 2009

Canopy Flashfuck

The sexual position in which a man gets aroused with sweatpants on, thus looking like a canopy, and then fucks a woman for 3 aggonizing seconds with those sweatpants still covering his penis.

Canopy Flashfucking is a weird way of saying "i'm too lazy for sex"

by Blankerson September 13, 2011