Gaff

To put your foot in it, doing something stupid or make a mistake

Mark - His name on the register is William, so why does he gets called Bill?

Charlie - Cos Bill is short for William!

Mark - Aww no, I just done a Gaff!

by The Coltness Killa October 16, 2009

Gaff

perfoming oral sex

She gaffed me all nite!

by Megz;) June 4, 2003

gaff

a gaff is a term used when someone is having a party, or a sesh.

christine is having a gaff next weekend, you coming?

by sesh lord December 28, 2016

gaff

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

Gaff

Someone who sits in the background and laughs at everything that everyone says in a group conversation without contributing to anything that anyone says but giggling and smirking like a nonce.

Brian: Oi Mike, D'you mind if I bring Adam to on Friday?...
Mike: If you want but he's just a gaff. Doesn't say anything...

by Yorkshire pudding December 13, 2017

Gaff

To take from

That dip shit gaffed my parking space

by Nix & BL June 21, 2001

Gaff

Grab Ass From Front

To grab someone's ass from the front.

Hey did you gaff Megan yet?
Shit man she loves it when I gaff her.

I gaffed her for two and a half hours.

by NieccoCapone April 3, 2009