Smartassery vs. Smartass: What's the Difference?
Smartassery and Smartass Definitions
(informal) The behaviour of a smartass.
(vulgar) know-it-all, an obnoxious clever person or a person making obnoxious efforts to seem clever.
(vulgar) An insolent person, especially one who makes snide remarks.
Lots of luck, smartass.
(slang) Related to or characteristic of a smartass.
I have had quite enough of your smartass remarks.
(slang) To talk like a smartass, with a lot of snide remarks.