Chiefly Brit. the heavy air in a closed room, regarded as either oppressive and murky or warm and cozy
Origin of fugaltered from uncertain or unknown; perhaps fog
A heavy, stale atmosphere, especially the musty air of an overcrowded or poorly ventilated room: “In spite of the open windows the stench had become a reeking fug” ( Colleen McCullough )
Origin of fugPerhaps alteration of fogo stench
(countable and uncountable, plural fugs)
- A heavy, musty, and unpleasant atmosphere, usually in a poorly-ventilated area.