Lasheration - an injury, specifically a laceration, obtained whilst drunk, or 'on the lash'.
Mate, I went out on the lash last night, drank 34 VKs in two minutes, pulled 42 birds, got a kebab and chundered all over an old woman's doorstep. Then I slipped over on my own vomit and cut my knee open. It was a well bad lasheration
by Lashley Cole June 11, 2011