1. Originally, cotton, or cotton wool. [Obs.] A candle with a wick of bombast. Lupton. 2. Cotton, or any soft, fibrous material, used as stuffing for garments; stuffing; padding. [Obs.] How now, my sweet creature of bombast! Shak. Doublets, stuffed with four, five, or six pounds of bombast at least. Stubbes. 3. Fig.: High-sounding words; an inflated style; language above the di...