qua·hog also qua·haug 
(kōhôg′, -hŏg′, kwô-, kwō-)
(kōhôg′, -hŏg′, kwô-, kwō-)n.
An edible clam (Mercenaria mercenaria) of the Atlantic coast of North America, having a hard rounded shell. Also called hard-shell clam, round clam.
[Narragansett poquaûhock.]