'Guffaw' definitions:

Definition of 'guffaw'

(from WordNet)
noun
A burst of deep loud hearty laughter [syn: guffaw, belly laugh]
verb
Laugh boisterously [syn: guffaw, laugh loudly]

Definition of 'Guffaw'

From: GCIDE
  • Guffaw \Guf*faw"\, n. A loud burst of laughter; a horse laugh. "A hearty low guffaw." --Carlyle. [1913 Webster]