1. windbag - Noun
2. windbag - Verb
(archaic) Bellows for an organ.
(mildly derogatory) Someone who talks excessively.
windbag (third-person singular simple present windbags, present participle windbagging, simple past and past participle windbagged)
To talk pompously or excessively.
To George, Overwhite still seemed like a windbag, but he was obviously a resourceful and intelligent one, a windbag woven of the finest material. James K. Morrow