define fug
A warm, stuffy or smoky atmosphere in a room: the cosy fug of the music halls. More example sentences. Synonyms. 1  There's a warm fug coming from the busy kitchen, where, to the accompaniment of clattering pans, staff are preparing everything from fish fingers and beans to pizza, jacket potato wedges and ham salad rolls. There's a warm fug in the lounge of the Acomb Working Men's Club: drifting cigarette smoke mingled with the clink of glasses and neighbourly chat.