git (n.)

"worthless person," 1946, British slang, a southern variant of Scottish get "illegitimate child, brat," which is attested by 1706 ("Gregor Burgess protested against the said Allane that called him a witch gyt or bratt"), according to "Dictionary of the Scots Language"); related to beget on the notion of "what is got." Scots get, gyt, geitt, etc. also can be an affectionate term for a child.