Mash up 

Opposite to 'Fix up' a saying bought to most people living out side London by Dizzee Rasscal. Mash up in London basically can be applied to anything that is broken/useless/shit

South West Trains should be called South West Mash Up Trains

Mash up by Hugh Janus September 16, 2004

mash up 

to destroy

When the police come to stop the fete everybody jus start run and the whole place get mash up

mash up by TriniGirl December 4, 2002

mash up 

Same meaning as wordmashedword, as in some one who is completely intoxicated.....usually on drugs of any kind beside alcohol.

Don't give him any more, he's mash up!

mash up by Rizladizla July 20, 2003

Mash Up 

1)Someone who is so intoxicated by alcohol that they are unable to master even the simple act of standing up.
2)The act of becoming so intoxicated by alcohol that the simple act of standing up becomes a mighty challenge.

Last night, he was mash up!

I'M MASH UP!!

Let's all get mash up!

Mash Up by dan258 December 8, 2003

mash up 

Irish word talking about a way to cook some spuds by breaking them down. Adopted by Jamaicans to describe breaking up other people's tings.

If he dont bring my weed im gonna mash up im bloodclaat yard

mash up by hairy mo April 18, 2004

Mash Up 

see "Girl Talk"

Konnor: You go to that Girl Talk concert? That was off the hook.
Josh: Yah man those Mash Ups were insane!

Mash Up by KonArtist38 January 1, 2011

mash up 

(of a DJ) to play a set that excites the crowd

That was mash up me bredrin!

mash up by piffy June 12, 2003