blowhard

Từ điển Oxford Advanced Learner 8th

blow·hard [blowhard blowhards] BrE [ˈbləʊhɑːd] NAmE [ˈbloʊhɑːrd] noun (NAmE, informal, disapproving)
a person who talks too proudly about sth they own or sth they have done

• Từ đồng nghĩa / Synonyms:
  bragger, braggart, boaster, line-shooter, vaunter