Noun

• S: (n) gulp, draft, draught, swig (a large and hurried swallow) "he finished it at a single gulp"
• S: (n) gulp, gulping (a spasmodic reflex of the throat made as if in swallowing)

Verb

• S: (v) gulp, quaff, swig (to swallow hurriedly or greedily or in one draught) "The men gulped down their beers"
• S: (v) gulp (utter or make a noise, as when swallowing too quickly) "He gulped for help after choking on a big piece of meat"