Pronunciation: ( jib),[key] —n.Naut. 1. any of various triangular sails set forward of a forestaysail or fore-topmast staysail. Cf. flying jib, inner jib. See diag. under ship. 2. the inner one of two such sails, set inward from a flying jib.
3. cut of one's jib, one's general appearance, mien, or manner: I could tell by the cut of his jib that he wasn't the kind of person I'd want to deal with.