To use boastful language; speak vaingloriously of one's self or belongings; boast; vaunt: used absolutely, or followed by of, formerly sometimes by on: as, to brag of a good horse, or of a feat of arms.To sound, as a trumpet; blare; bray.To boast of.To blow (a trumpet).n. A boast or boasting; a vaunt; also, boastfulness.n. A thing to boast of; source of pride.n. A game of cards: same as poker.n. A bragger.Proud; boasting: as, “that bragge prescription,”Also used adverbially.n.