Translation guide
A person who talks too much in a boastful or self-important way, often without substance.
Describe someone who brags or talks big, often annoyingly.
Literally 'braggart' or 'boaster'; a person who tells tall tales or exaggerates their achievements.
He's just a blowhard.
Literally 'big-mouth'; someone who talks big or boasts loudly.
I'm fed up with that blowhard.
A formal, literary phrase meaning 'person who makes grandiose statements'. Not used in everyday conversation.
He's a blowhard with no actual achievements.