Gulp

Part of speech: noun (n.)

1. The act of taking a large mouthful; a swallow, or as much as is awallowed at once.

2. A disgorging. [Colloq.]

Part of speech: verb (v.)

To swallow eagerly, or in large draughts; to swallow up; to take down at one swallow. He does not swallow, but he gulps it down. Cowper. The old man . . . glibly gulped down the whole narrative. Fielding. To gulp up, to throw up from the stomach; to disgorge.