When a man's scrotum attaches itself to the his thighs. Can be cured with ample amounts of baby powder
Damn it's hot. I have wicked batflaps.
by CSmizzle June 15, 2010
Can you define these popular missing words?
Pulling your scrotum (nut sack) wide apart to expose the veins through light. To make it appear as a bat's wing.
My girlfriend came out of the shower to be exposed to a Bat Flap waiting in eagerness to be licked!
by HerNextBaby'sFather February 21, 2013