By inventing new words for getting/being drunk, they are just following in the distinguished literary tradition of PG Wodehouse, whose descriptions of the state include:
Under the surface, Completely sozzled, Fried to the tonsils, Full to the back teeth, Lathered, Suffering from magnums, Lit a bit, Shifting it a bit, Mopping the stuff up, Off-Colour, Oiled, Ossified, Pie-eyed, Plastered, Polluted,Primed to the sticking point, Scrooched,Squiffy, Stewed, Stinko, Tanked to the uvula,Tight as an owl, Whiffled, Woozled, Awash and Under the sauce.
He also identified six varieties of hangover:
The Broken Compass, the Sewing Machine, the Comet, the Atomic, the Cement Mixer and, of course, the Gremlin Boogie.