Top Definition
The name given to the vertical slit or opening at the front of guys' briefs or boxers, which allows quick access for masturbation ("fapping").
Frequent use of ones fap flap can overstretch the fabric leading to awkward and embarrassing sleeping positions.
by JakobTTx January 28, 2010
1 more definition
Another word for the Magnetic Cover of the New iPad2.

The cover protects the screen during fapping.
"Dude, gruwesome."
"Fortunately only on my fap flap and not on the screen
by PIT5657 August 23, 2011

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×