Merriam-Webster's Collegiate® Dictionary, 11th Edition
GOBBLE
I. transitive verb (gobbled; gobbling)
Etymology: probably irregular from 1gob
Date: 1601
to swallow or eat greedily, to take eagerly ; grab , to read rapidly or greedily,
II. intransitive verb (gobbled; gobbling)
Etymology: imitative
Date: 1680
to make the natural guttural noise of a male turkey, to make a sound resembling the gobble of a turkey, gobble noun