To masturbate and or "Gaff" to something extraordinary (porn clips with amazing portnstars) or during sexual intercourse.
Kumar: "Oh my god! I need to gaff...I've been dry for days."
Wong: "Days...holy shit...It's been hours for me and I'm soooo dry."
Kumar: "That's not coo...what would Colonel Sanders say about this...?
Wong: "Gaff and Munch child...Gaff and munch..."
by A Panda from Antartica June 20, 2010
When a person intraveniously injects meth and the rush is so intense it causes the person to instantly cough. Hense, the coughing is known as the gaff.
Wow, did you hear the "gaff" I got from that load I just did?
by MerryChrismeth April 24, 2010
Verb
To Steal
I gaffed that.
by gabe19712 March 07, 2006
Underwear used by trannys to conceal their man junk
That tranny's gaff is so good it looks like he/she has a vagina.
by ThomasPhillip April 25, 2007
Something that is fake or just not right. Like when someone buys a $20 fake Rolex or someone tries to explain to you how to do something the wrong way.
"Hey, look at this great Rolex I bought for $20" "That watch is gaff"

"Take a right after the Dairy Queen go straight for two miles" "Those directions are gaff"

by LoveBroker July 10, 2008
v. (theatrical) to tape down out of harm's way, as in electrical cords, audio cables etc.
"Gaff these down across this doorway"
by voodooelectronics July 19, 2006
Stands for GodAwful Fanfic Forums. A place where bad fanfic gets its ass-kicked for cheap laughs and quick mental stimulation.
"I love GAFF!" reported one fan of this Mafiaosi type of fanfic site.
by Simple Plan Sucks June 18, 2005

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