Definition of bombasts:
(n) :
(figurative) High-sounding words; language above the dignity of the occasion; a pompous or ostentatious manner of writing or speaking.
(v) :
To use high-sounding words; to speak or write in a pompous or ostentatious manner.
(adj) :
Big without meaning, or high-sounding; bombastic, inflated; magniloquent.
(v) :
To swell or fill out; to inflate, to pad.
(n) :
(archaic) Cotton, or cotton wool.
(n) :
(archaic) Cotton, or any soft, fibrous material, used as stuffing for garments; stuffing, padding.