mashing up a girl's dinner

To perform the act of anal sex on a woman. To fuck a girl in the ass.

Last night i was mashing up a girl's dinner and i got shit on my dick!

by patyouth711 July 17, 2009

mash it up nah

A trinidadian phrase to usually said AFTER some one comes close to breaking something,it is a form of sarcasm.

person 1) knocks over appliance

Person 2) well mash it up nah.....

by bronte91 January 31, 2009

Mash you up

To have sex with someone with great force and power

Yeah that Lucy I’d mash her up
I’d Mash you up

by Mayson Wordsworth October 13, 2018

Mashed up Dundee cake

The disastrous results of shitting yourself and seeing what the contents of your undergarments look like

Egad I've got 3 and 3/4 lbs of mashed up Dundee cake in the seat of my pants right now

by Mon nom de plume est Satre August 26, 2016

Gash Mash-up

When a person gets bored of one persons vagina so has to swap from fanny to fanny. Also if a person does not get action from his girlfriend or only once or twice a week so finds other girls so he can get gash all week.

Joe: Woww i've got a proper gash mash-up this week lillie on monday then ellie tuesday then my girlfriends sleeping over wednesday but friday i think i will see Georgie.

Jack: Ahh cant be arsed my girlfriends fanny is to tight i get bored might as well go fuck Georgie.

by sbvodka July 28, 2010

Mash up

Mane. To Fuck that’s it

I look I’m tryna mash up and mash out nothin else labih!

by Tha$lickest March 28, 2018

mash up

"A mash up". Someone who is insane, crazy, or just not quite there.

That fool over there, he's a mash up.

by jduk23 December 28, 2007