swig
noun.
a large and hurried swallow
he finished it at a single gulp
Synonym: draft, draught, gulp
verb.
strike heavily, especially with the fist or a bat
He slugged me so hard that I passed out
Synonym: slog, slug
verb.
to swallow hurriedly or greedily or in one draught
The men gulped down their beers
Synonym: gulp, quaff