[n] a large and hurried swallow; "he finished it at a single gulp"
[n] a spasmodic reflex of the throat made as if in swallowing
[v] utter or make a noise, as when swallowing too quickly; "`Help,'" he gulped.
[v] eat greedily
[v] to swallow hurriedly or greedily or in one draught; "My car gulped 20 gallons without even wiping its mouth."