1. mullered - Adjective
2. mullered - Verb
(Britain, slang) Drunk.
Every Friday night we would go out and get completely mullered.
(Britain, slang) Badly damaged; trashed; destroyed; heavily defeated.
My car isn't driveable at the moment: the clutch is totally mullered.
mullered
simple past and past participle of muller
No matter if we’re playing Germany and are likely to get Mullered or we’re facing an also-ran like San Marino that we’ll, hopefully, sweep past. Source: Internet