gorb, n. — Green’s Dictionary of Slang

gorb n.

also gorby-guts

[dial. gorb, a gluttonous person or animal; ? ult. Scot. gorb, an unfledged bird; note also SE gorbelly, a (person with) a fat stomach]

(Irish) a glutton.

1908		L. Doyle Ballygullion 239: Ate it; aye did he, the greedy gorb.
1910		P.W. Joyce Eng. As We Speak It In Ireland.
1983		P. Devlin All of us There 74: Get out of it, you gorb.