To champ; to chew loudly and greedily. Champ is an old word, but not often used now, except in connection with a horse.--Forby's Vocab. Chomp is quite common in New England and is applied to persons who eat fast or greedily.
A tobacco-pipe happened to break in my mouth; and the pieces left such a delicious roughness on my tongue, that I champed up the remaining part.--Spectator.