Entry 1 sense Webster, 1913 Stuck-up · Stuck·-up · IPA 01 a. Self-important and supercilious, �onceited; vain; arrogant. 1. Self-important and supercilious, �onceited; vain; arrogant.[Colloq.] “The airs of small, stuck-up, men.” — A. K. H. Boyd.