Green’s Dictionary of Slang

self-opinionated, self-aggrandizing.

1960		(con. WWII) R. Leckie Marines! 58: Open ’at bag, you wise-assed sonuvva bitch!
1963		J. Rechy City of Night 28: No skinny wiseass punk pulls any shit on me.
1971		D. Goines Dopefiend (1991) 46: Tell that wise-ass bitch to take her business somewhere else.
1985		N. Pileggi Wiseguy (2001) 42: He didn’t need a couple of wise-ass kids like us ruining his business.
1990		S. Morgan Homeboy 17: Wiseass barker dopeslingers [...] bulleted right to the top of Bermuda’s bummer parade.
1999		Observer Screen 25 July 7: Will Smith can handle gun-totin’ action, wise-ass humour and bedroom duty.
2000		Indep. Rev. 4 Mar. 11: Carl Mix portrays his family as a fun-loving group of wise-assed cuties.
2006		D. Winslow Winter of Frankie Machine (2007) 49: ‘Then why were you busting chops?’ Frank asks. Because you’re a smarmy, wise-ass punk, Frank thinks.
2014		J. Conley ‘Visitor at Copenhagen Street’ in ThugLit Jan. [ebook] He often called me pet [...] but he used it in a wise-ass way.