actually i was watching the Michael McIntyre DVD last night and he went on about this and said that you could probably use any word in the English language as a description of being drunk. things like "last night i got completely farmed" or "i was really abosolutely caravan'ed."
probably you'll also find that each country has its own words for being rat-assed and it wouldn't make any sense to anyone else.
I personally love the word "belligerent", or "belliged" for short. I'm surprised by how many people actually know what the word means and how many of them actually can still say it when they're completely, well, belligerent. (Most of them are angry-assed motherfuckers when they're drunk, including me, so that explains it.)