Blow the Gaff

To knock one out on to a piece of cloth - in most cases a hankerchief - roll it up and hide it under the bed covers.

Guy: hey, why you late today? Been waiting for ages...

Friend: Sorry man, had to blow the gaff first.

Guy: Did you wash your hands?

by Crazy Meka September 16, 2009

Pigeon Your Gaff

To throw pigeons at ones Gaff (house)

I'm going to pigeon your Gaff!!!

by Memez420710 May 2, 2019

Ah baf man gaffi gaffi North Face pet

When you put a XTC-pill or another pill containing the substance “MDMA” in someones mouth without him wanting this.

Hey ah baf man gaffi gaffi North Face pet.

Nooooo man die guy is al fucktop genoeg en heb geen zin in gezeik met wouten

by 420xxxAchmedxxx360 July 16, 2019

Up The Gaff

When a girl is on her period

Did you hear about Abi, she’s Up The Gaff

by Donald_Duk April 12, 2020

Goose the gaff

To egg a persons house with goose eggs ( preferably rotted )

Bobbys dad is a real c*nt let’s Goose the gaff tonight

by Murftaco July 27, 2023

Splunted off the Gaff

Extremely stoned; high on Grand Daddy Purp; greened-out

I smoked a whole blunt to myself and now I’m absolutely splunted off the gaff.

by owowman November 10, 2025

JM Welsh Gaff

When someone says “sex” when they meant to say “Success” or vice versa. Originating from Popular YouTuber JackSucksAtLife who made this mistake in the now infamous “Poor Jack” moment

Interviewer Laura Rutledge had a JM Welsh Gaff this week when she asked Coach Saban how he dealt with “all the sex he been having lately,” when she meant to ask about his success late in the season.

by 010Rusty December 10, 2025