'Gulping' definitions:

Definition of 'gulping'

noun

A spasmodic reflex of the throat made as if in swallowing [syn: gulp, gulping]

noun

The drinking of large mouthfuls rapidly [syn: gulping, swilling, guzzling]

From: GCIDE

Gulp \Gulp\, v. t. [imp. & p. p. Gulped; p. pr. & vb. n. Gulping.] [D. gulpen, cf. OD. golpe gulf.] To swallow eagerly, or in large draughts; to swallow up; to take down at one swallow. [1913 Webster]
He does not swallow, but he gulps it down. --Cowper. [1913 Webster]
The old man . . . glibly gulped down the whole narrative. --Fielding. [1913 Webster]
To gulp up, to throw up from the stomach; to disgorge. [1913 Webster]