Top Definition
A piece of chud (ref) or mould captivated on one's shaft end.
Guy: Dude i dunno what she had, but i seem to be growing some greb on my shaft

Other guy: ewww, grebend.
by grebend May 27, 2010

Free Daily Email

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

Emails are sent from We'll never spam you.