look up any word, like jamflex:
 
1.
The ash build-up on a blunt or joint.
Ash that shit, it's geralding like a motherfucker.
by Federal Inmate Number 19225004 February 18, 2008
 
2.
1). The act of masturbating repeatedly and often to the point where your ejaculation becomes a puff of dust.

2). The act of consistently masturbating with the door open or unlocked after repeatedly being caught by their roommate.
Patrick caught his roommate geralding AGAIN!
by WEKNOWYOUBEATITGERALD March 14, 2011