you need to calm your hormones woman!!!
Doom's BFG9000, of course.
Pulse rifle from Turok. The personal black hole creater was cool but unreliable.
Ah, yes. Doug Piranha. He used... Sarcasm!
lol! I have no idea who Doug piranha is. Just googled it :P
Actual thing I've seen, probably coilgun (electromagnetic projectile accelerator) or a Tesla Coil gun (they exist).<br />
Fictional gun? Portal gun. Hands down.
Wooden spoon.... Jk jk KINDNESS