Someone who speaks loud and long, offering an opinion YOU disagree with.

Someone who brags all the time.

A person who takes great pleasure in boasting or bragging about themself.

An uptight person. Square. By the book. Ass hole.

A pompous, self-righteous individual, the kind who, on being charged with non-compliance with Covid regs by not wearing a face covering, flunks the exemption test by blowing hard into the spirometer.

As mentioned in another definition, a very braggy and pretentious person, overly prideful and arrogant. See egotist.

Also could be an insult to anyone; the definition of this other insult is totally unrelated to boasting or bragging. We all know what blow means.

1. a person that's insecure with their existence, and by their own virtue, they feel the need to blatantly spew ilk and diatribe about other people that are otherwise innocent.

2. also see: keyboardracer, gayrab, Ablab, & namedrop.