The initial idioms of the letter F

fink out	fink out on someone/something
fink	Finn
fire	fire a line
fire a shot across bows	fire away
fire back	fire drill
fire (one's) pistol in the air	fire hose
fire in belly	fire in the belly
fire into	Fire is a good servant but a bad master
fire off	fire on
fire on all cylinders	fire over
fire someone up	fire with anger
fire something up	fire up
fireball	fire-breather
fire-breathing	fire bug
fired up	drink from a fire hose