1. a warm, stuffy, or smoky atmosphere in a room or enclosed space
Usage: informal; chiefly British

1. to make a room warm, stuffy, or smoky; to fill with fug
Usage: informal; chiefly British

Examples

• The bar was filled with a thick fug of cigarette smoke.
• After hours of people crowded in the small room, a fug had settled over the gathering.
• The heating system fugged up the office, making it uncomfortable to work.
• She opened the windows to clear away the fug.
• The stuffy fug in the basement made it hard to breathe.