look up any word, like dirty sanchez:
 
1.
think of an engine as a giant air pump. It gobbles up air from the atmosphere and dumps it into six cylinders. Inside each cylinder, the air is mixed with fuel that is sprayed in by the fuel injectors. The spark plug ignites, causing a small but powerful explosion. This explosion rapidly expands the air that is inside the cylinder, forcing the piston upwards. The piston is connected to the connecting rod which turns the crankshaft. The crankshaft spins and is connected to the transmission, driveshaft, rear differential, and finally, the rear axle and wheels.
my car has an engine
by AkumaGouki November 23, 2004
 
2.
thing that makes things go. like a heart, except it's gas based instead of blood.
Little Rice Burner: What's that noise?
American guy: That's the engine.
by mephisto June 03, 2003
 
3.
Cool-lookin thiny placed...somewhere...in the bounds of an automobile.
What does that do again?
by Bulletproof Marshmallow October 27, 2003