in a coffin 

To be extremely intoxicated, especialy from alcohol.

Last night dog, I had some of that hen mixed with hypnotic, I was in a coffin!!

in a coffin by APOLLOSTEES May 21, 2005

Die in a coffin 

A "diac" or "die in a coffin" is a variant to "diaf" or "die in a fire".

Mark: Wow Jenny, you look trashy today.
Jenny: Die in a coffin.

Die in a coffin by patrux March 1, 2009

Don't turn a cough in to a coffin 

To make a situation worse by moaning about it before it has reached its natural conclusion.

"This bonfire night is shit. It's 9.30 and we haven't seen any fireworks yet"
"Chill out, don't turn a cough in to a coffin"

Don't turn a cough in to a coffin by tytybo November 8, 2011

put a nail in the coffin

to go get a cigarette or to smoke a cigarette. usually used when at work and wanting to get a break.

"I'm gonna go put a nail in the coffin while I can before getting back to work"

put a nail in the coffin by Wolfkin November 8, 2013