1. to light, fire (the furnace, boiler, stove, etc.); to stoke up, fire up (the furnace, boiler, stove, etc.). 2. slang to get a move on with, get cracking on (a job). 3. slang to open (a window or door) all the way. 4. slang to take off, strip off (a piece of clothing). 5. sailor's slang to hurry up