Being drunk to the point where others could possibly mistake you for a zombie. Key points of interest being wobbly legs, crooked shoulders, incoherent mumbling and an open drooling mouth. Other signs are ripped/dirty clothing from falling down a hill or randomly rolling around in a field.
"Dude, did you hear what happened to Jimmy?"
"Yeah, he got totally zombied and crashed a speedboat into a helicopter."
"Crazy shit, huh?"