Green’s Dictionary of Slang

(orig. US) an unpleasant, obnoxious person.

1896		Ade Artie (1963) 7: There they was, holdin’ on to this wart.
1905		R. Beach Pardners (1912) 142: Take care that ye don’t, ye big wart.
1913		Van Loan ‘For Revenue Only’ in Lucky Seventh (2004) 216: There ain’t no four-eyed, pot-bellied, little wart that can keep me from getting what’s coming to me.
1925		Wodehouse Carry on, Jeeves 150: I remember them at that time striking me as England’s premier warts.
1939		R. Chandler ‘Trouble Is My Business’ in Spanish Blood (1946) 200: A hundred guys could have chilled this little wart.
1948		C. Day Lewis Otterbury Incident 17: He was a wart.
1967–8		Baker et al. CUSS 219: Wart An ugly person, female.
1983		W.F Marshall ‘Sarah Ann’ in Livin’ in Drumlister 73: Did ye iver know wee Robert? Well, he’s nothin’ but a wart, / A nearbegone oul’ divil with a wee black heart.
1990		T. Winton Human Torpedo 96: Get up, wart. You wanna fight?
1996		Dandy Book n.p.: ‘Where is that little wart?’.