smartass
suomi-englanti sanakirjasmartass englanniksi
(synonym of), an obnoxious clever person or a person making obnoxious efforts to seem clever by acting or behaving as if they know everything.
(ux)
Related to or characteristic of a smartass; irritatingly clever or smug.
{{quote-book|en|year=2012|author=Storm Large|url=https://books.google.com/books?id=ECJnVs_f2LMC&pg=PA240&dq=%22smack-talked%22&hl=en&sa=X&ved=0ahUKEwiO5cv4v_XKAhULwGMKHZiLA4UQ6AEIIzABv=onepage&q=%22smack-talked%22&f=false|title=Crazy Enough: A Memoir