mash and dash 

Could either be described as
a) a one night stand type situation where you have sex and never talk to each other again
b) or it could just describe any situation where you just do it and leave ( for instance, partners can still mash and dash each other )
Usually used among people we describe in the UK as 'rudeboys'

Nah, blud, last night was just a mash and dash, you get me, she aint my girl or nuffin.

mash and dash by Daffy the Dope Master September 8, 2007

mash and dash 

To have sex with someone, then to leave them out your life.

Another word for a one night stand.

mash and dash: dylan chauhan mashed and dashed that blonde gash, she was seduced by his tash.

mash and dash by ratchetho12 October 12, 2009

Midget Mash and Dash 

When a friend that is under 5 foot 3 daps up 1 person at the function and goes home to play PS5

Alex trimboli preformed the midget mash and dash before he dipped to play 2k

Midget Mash and Dash by Tommyvercetti March 20, 2023

Mash it and dash it

See Hit it and quit it

The act of having sex with a girl and then cutting off all contact with them.

- Are you gonna link Natasha tonight?

- Yeah I'm gonna mash it and dash it!

Mash it and dash it by Dave217 April 7, 2007