bloviator 

1. A public figure, such as a politician or an actor, who makes outlandish, strident statements on issues, thinking that the average man will care about their opinions.

2. Someone who pontificates about issues of which they are uninformed, yet pretend to be expert.

3. Pompous blowhard, using their celebrity to speak about topics on which they are totally unqualified.

That bloviator Alec Baldwin said he was going to move to France. Why is he still in Hollywood?

bloviator by desert irishman April 7, 2004

Bloviatrix 

Fem. form of Bloviator: n: a blowhard. Pundit whose arguments are passionate but not necessarily fact-based.

Ann Coulter, a bloviatrix on the Fox network didn't let a lack of information inhibit her diatribe.
Maureen Dowd, is a bloviatrix in the employ of the Paper of Record.

Bloviatrix by Martinetta October 10, 2014

Bloviatrix 

Person who has taken incessant yapping to the level of a fetish. One who spews forth so much verbiage that it causes listeners physical pain, which the bloviatrix then derives sadistic pleasure from.

That guy talks more than a roomful of sorority girls. He's a real bloviatrix.

Bloviatrix by Lord Nexus VI October 10, 2010