yam /jæm/noun 8verb 2forms 3 noun8 •The edible, starchy, tuberous root of that plant, a tropical staple food. •(US) A sweet potato; a tuber from the species Ipomoea batatas. •(Scotland) A potato. •(New-Zealand) An oca; a tuber from the species Oxalis tuberosa. •(Singapore, Malaysia) Taro. •Any climbing vine of the genus Dioscorea in the Eastern and Western hemispheres, usually cultivated. •An orange-brown colour, like the flesh of the yam. •Home. verb2 •(UK, slang) To eat.“If I was that snake I’d just open my jaw and yam that fool up in one bite!” — 2016 •To dunk on; to beat humiliatingly. formsyammed · yamming · yams