Synonyms for Guzzle:

n.

crunch, devour, chow down, demolish, champ, chomp, bite, choke down, cannibalize. engorge, gobble, down, englut, ingurgitate, bolt, ingestion, wolf. nip, soak, imbibe, lush, Drugs, booze, tipple, tank up. swill (noun)
swig.

v.

drink (verb)
quaff, carouse, swill, drink, gulp.
drink down fast (verb)
swill, imbibe, bolt, carouse, ingurgitate, soak, swig, devour, quaff, booze, tipple, gobble, englut.

Other synonyms:

imbibe, engorge, swig, tank up, englut, ingurgitate, tipple. gobble. bolt. soak. consume
chow down.
drink
tank up.
drink down
quaff, swig.
englut
englut.
Other relevant words:
chomp, ingestion, gobble, bolt, crunch, swig, englut, ingurgitate, tank up, cannibalize, tipple, demolish, imbibe, engorge, lush, devour, soak, nip, booze, champ, down, bite, Drugs, wolf.