Wiktionary
smartarse
n. (alternative form of smart arse English)
Usage examples of "smartarse".
I’ve had every smartarse weapon in the Confederation thrown at me, and I’m still alive.
I need a local smartarse to straighten out crap like a ship and how to sneak my possessed disciples past the pigs guarding the planet.
You can imagine the inventor of the wheel, can't you - a big crowd of villagers in front of him pointing at their rotting teeth going 'Ugh, ugh,' meaning 'OK, smartarse, that's the transport sorted out, now how about these?
I might have done better simply to tell the smartarses that I'd been to school in Dorset, saving the revelation that I meant Thorn Walk Secondary for a punch line.