male office worker who doesn't go straight home after work
Jocular, colloquial term for a salaryman who dawdles after work, visiting bars, cafés, pachinko parlors, etc., instead of going straight home. A pun on ふらり (aimlessly) and サラリーマン (salaryman).
He's a furari-man every night and doesn't go home easily.
When there are many furari-men, it's tough on the wives.