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A person who is ashamed to admit he/she has no knowledge about a question asked so tries to hide his/her ignorance by inanely prattling on, dancing around the obvious and useful answer; "I don't know", which would allow you to get on with your day, i.e. go find someone who knows what the hell they are talking about.
You: Good Lord! My ignorant boss just refuses to say "I DON"T KNOW" so I had to stand there listening to his worthless bullshit for ten minutes. Finally I just walked away and left him jibber jabbering away. He's probably still talking for all I know.

Sympathetic coworker: Yep, he's a windbag alright. By the way, I overheard your question and the answer is yes.

You: Thanks.
by T-Ride Free Box October 30, 2013
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an officer, usually a major or above, who stands on a stage/podium during a briefing, ceremony, or just stops by your shop unannounced and tells you how dumb you are and how great they are. if you listen to them at all, you might hear something about drinking and driving or motorcycle safety.
the new commander is a real windbag. we had to stand at attention for the whole hour.
by lopeztheheavy September 22, 2007
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A British person. Especially a British politician. However, they are STYLISH windbags, as opposed to American windbag politicians, who are mostly just dumb-ass windbags.
Chamberlain Churchill Pelosi Ryan windbag
by bloodonion June 22, 2017
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Pressing your balls on someone's windshield, especially in retaliation for shitty driving behavior.
I totally windbagged that guy for parking so close to me
by FrostyCat February 07, 2015
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