Definitions by Stevie A

Gash warmed up in the microwave 

An expression of something very shit.
Usually related to the way someone is feeling.

Person 1 - How you feeling after your night out?
Person 2 - Ohh mate, i feel like gash warmed up in the microwave.

Mate you forgot your keys....
OH GASH WARMED UP IN THE MICROWAVE!!

Gash warmed up in the microwave by Stevie A May 25, 2008