Green’s Dictionary of Slang

wise-ass n.

also wise-arse, wisepuss
[wise adj. (2) + -ass sfx]

(US) one who sees themselves as cleverer than they really are.

[US]G.L. Coon Meanwhile, Back at the Front (1962) 102: What are you, a wise ass?
[US]L. Bangs in Psychotic Reactions (1988) 63: I’m talking about writing now, I know they play different instruments, wisepuss.
[US](con. 1945) E. Thompson Tattoo (1977) 355: Who’s the wiseass that said that?
[US]R. Price Breaks 156: He was the king of irreverence, a bright, quick get-down wise-ass.
[US]B. Hamper Rivethead (1992) 12: You wanna play wiseass with me and I’ll knock you down a few pegs.
[UK]Guardian Weekend 9 Oct. 32: He must have had to stomach these kind of patronising wise-arses often.
[US]C. Hiaasen Nature Girl 95: Get busy on your homework, wiseass.
[UK]T. Black Gutted 156: You’re right. I’m a wise-ass.
[US](con. 1973) C. Stella Johnny Porno 25: A wiseass [...] I tell you what, wiseass. You can do the head counts at youir stops next week.