know-it-all[ noh-it-awl ]SEE DEFINITION OF know-it-all
EXAMPLES FROM THE WEB FOR KNOW-IT-ALL
"She is—and she's just what you need," said Sue, with that know-it-all smile of hers.
Lewis was one of these stuck-up, know-it-all johnnies, not long breeched.
He is impressed with the suggestion that the speaker is a "know-it-all" fellow.
He must keep in sympathetic touch with the new, damning the know-it-all frame of mind.
None of the new girls appeared to be inclined toward a “know-it-all” attitude, for which Jane was grateful.
"I've a good mind not to tell you, Mr. Know-it-all," exclaimed Johnny Chuck.