chuck, chukky noun credit: I’m jawin tae the habben keir, but I hae nae loor for pennam, but I’ll try to get it on chuck. [I’m going to the bakers for bread but I have no money so I’ll try to get it on credit.] 20. etymology: origin obscure; possibly a form of English tick; attested by Galloway Tinkler-Gypsies; form chukky attested by SS; and also collected by McCormick