What is the meaning of brag?

noun

• An instance of boastful talk.
  • usage: "his brag is worse than his fight"; "whenever he won we were exposed to his gasconade"
  • synonyms: bragging, crow, crowing, vaporing, line-shooting, gasconade

verb

• Show off.
  • synonyms: boast, tout, swash, shoot a line, gas, blow, bluster, vaunt, gasconade

adjective

• Exceptionally good.
  • usage: "a boss hand at carpentry"; "his brag cornfield"
  • synonyms: boss