gashcrash 

1) A combination of gash and crash... turning up at a chick's house with sole intention for having sex.

2) To gatecrash a party with the express intention of partaking in sexual liaisons with females therein.

1) "What happened last night?"
"I gashcrashed at that slapper's flat."

2) Howlarge successfuly gashcrashed a party last week, pretending to be the brother of the birthday boy, and making off with a real stunner.

gashcrash by Howlarge April 3, 2007

Gatecrash 

Turning up unexpected and unwanted at a party, house or gathering, etc

Having a well cool party till these chavs gatecrashed

Gatecrash by Nessa April 10, 2005

gatecrasher 

A gatecrasher is a person or people the come to somebody's party unannounced and walk/force their way in, alot of the time if in a large group trash the persons home and steal things.
 
'Gatecrasher' though is also one of the best raves of all time with wicked laser shows.

"Yo, wanna go gatecrash that rich kids party?"
"Yeh, fo sho, we can steal us some bling bling while we there!"
 
"How good was gatecrasher man? It was way better than last years one"
"One of those lasers got me in the eye man, I can't see shit!"

gatecrasher by Matt[O] September 24, 2005

gashlash 

The injury sustained when turning ones head or body rapidly to observe a female.

Take a look at that totty over there, but mind you don't get gashlash.

My neck hurts after walking past all those hotties, I think I have a severe case of gashlash.

I spent the whole day meerkatting, and I have got gashlash.

gashlash by killban October 26, 2010

Gatecrasher 

Gatecrasher One is a trance club in Sheffield, England that was born after Gatecrasher toured the country, eventually settling at what was called "The Republic" in Sheffield. Although originally a trance club, it has bowed to the mainstream and now plays cheesey shite on a Thursday that pisses trance fans of the club off a treat.

Gatecrasher Two, the second of the chain of clubs opening is born in Leeds.

Often just called "Crasher."

Hey did you go to Gatecrasher One on Tuesday? It was Nu-Crasher, the only real night that plays the music that made Gatecrasher famous.

Gatecrasher by Becks, July 21, 2008

gashflash 

flashing ones female sexual organs for a considerable amount of money or just attention. mainly attention of cameras/paparazzi.

OMG britney spears GASHFLASHED again!

gashflash by Jabeha January 20, 2008

gashmash 

two girls scissoring themselves!

me and my bitch gashmashed for hours lastnight

gashmash by fritzinator March 16, 2009