After you fart many times while sitting on the couch, when you get up it is warm and the smell is there for a long time afterwards.
Todd watched the football game on the couch. When he left the fart furnace kept the room warm for hours.
Having a great time and taking fun to a new level. Usually involves drinking.
Alex: "What are u doing tonight?"
Shane: "Drinking with Nic, we're gonna punish fun."
That guy punishes fun.