gulp

Concise Oxford English Dictionary © 2008 Oxford University Press:
gulp/ɡʌlp/

▶verb

• 1 swallow (drink or food) quickly or in large mouthfuls, often audibly.

• 2 make an effortful swallowing motion, typically in response to strong emotion.

▶noun

• 1 an act of gulping.

• 2 a large mouthful of liquid hastily drunk.

– derivatives
gulpy adjective.

– origin ME: prob. from MDu. gulpen, of imitative origin.