To do a sebastian

To masturbate in public bathrooms

He tried to do a sebastian but was caught by the teachers

by @mrkulci September 04, 2018

doing a pitfield

committing an act, so ridiculous you couldn't make it up such as crashing your car at 1mph, taking two left shoes on holiday with you, wearing two odd shoes to work, adding 24 minutes 41 seconds and 24 minutes 20 seconds and coming up with 48 minutes 61 seconds.

any act of foolishness that you'd be embarrassed to see happen to a monkey. or a dog.

running into a patio door and not realising it was closed, could be termed as "doing a pitfield"

by chris's mum November 07, 2006

do a thing

To get sexually involved with someone but as a one time thing.

Girl: I'm not looking for a relationship
Boy:Let's just do a thing, no one has to know,

by Stellathedon June 19, 2017

Doing a Joe

The act of breaking up with a person or ending a friendship via text or email or any means that isn't face-to-face. This can be between two persons of the same sex, persons of the opposit sex or even between family members.

Girl 1 - Why is she clutching her phone & crying?
Girl 2 - She just got joed
Girl 1 - What a jerk!

or

Guy 1 - Dude why are you texting so much?
Guy 2 - I'm Doing a Joe to my girlfriend. Let's go to bar and score chicks!

by Madam X June 02, 2011

Doing a Tommy

The art of video chatting while doing a number 2 and the other person has no idea

I was doing a Tommy the other night with that girl I met on tinder

by Dickie Burlap June 11, 2019

do a Moby

When you have produced something original (music, an invention, whatever), to make a fortune by lisencing (NOT selling, see below) the rights to it to a big company that can bring it to the masses. Differs from being a sell out, as you still own the rights, so the big co. can't force you to go mainstream to make them even more money.
Originated when the electronica artist Moby sold the copywrites to every track on the album "Play", for use in ads, films, and TV.

James Dyson demonstrated how to do a moby when he came up with that uberhoover.

by Irrelevant September 11, 2005

doing an ash

1. pooing at parties

2. shouting at old ladies

(1 so called because it's as warm and smelly as a hot pile of ash)
(2 so called because of the noise old ladies gums make when they choke on their mushed swede in shock at being accosted in such a fashion)

1.
dude, that guy's been in the bathroom for ages
must be doing an ash

2.
OLD LADY TWAT
you're such an ash, man

by man in a van with a plan October 20, 2010