Drunk - slang (6)
(Other definitions for hammered that I've seen before include "Beat hollow" , "Forged" , "Utterly defeated in a contest" , "Thoroughly beaten (colloq.)" , "Hit hard" .)
(Other definitions for oiled that I've seen before include "Cut" , "protected from rust?" , "tipsy" , "Anointed" , "Oldie (anag)" .)
(Other definitions for blotto that I've seen before include "Plastered, hammered, sloshed" , "Dead drunk" , "Wasted" , "under the table" , "More than happy" .)