type of gun that uses magnets and electricity to shoot out the "bullet" at super sonic speeds. mainly in sci-fi and games,but its real.
metal gear rex, the station guns in halo 2, and in star gate atlantis.
by jibus June 25, 2005
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A large type of cannon that uses 2 or more rails (hence the name) that are charged with electromagnetic energy. They electromagnets propel a projectile at high speeds over great distances. These weapons do get very hot after use and therefore require great cooling power.
The US Navy is currrently working on a project to equip a new type of Destroyer with rail guns.
by p8ntball4life79 July 7, 2006
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a badass type of rifle which fires an extremely fast projectile. Used by Arnold Schwarzenegger in the movie Eraser.
Jesus loves rail guns.
by smartkid June 9, 2005
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Means 2 things:

1) A weapon under development. Used against a giant robot clawing the Pyramids of Giza.
2) Ability that can fire straight electric shots, with anything iron-made as head.
3) A tomboyish woman who loves wearing boylegs, loves a frog mascot, has more than 20,000+ clones and fell in love to an unlucky bastard named Touma.
1) Rail Gun is a futuristic weapon.
2)Agent: I want a prototype weapon called a Rail Gun.
Ship Captain: That's classified.
Agent: Don't talk to me about CLASSIFIED!
3) A Rail Gun shot was deflected once again by the UNLUCKIEST BASTARD on Earth.
by Kay Tutan Tayo December 6, 2018
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When a butt plug is shot out of an anus due to ingesting cheap Mexican food and cocaine.
I took my girl to Taco Bell after the club last night. She must have been skiing in the bathroom, because when we got home she went off like a rail gun and put her but plug through my neighbor’s window.
by Comp B September 10, 2020
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The act of suppositing a large, mortar shaped metal butt plug into the anus, then nipping down to your local hospital for your MRI scan.
The magnetic resonance has been known to instantly accelerate the supposited metal object up to the speed of sound and deposit it elsewhere in the torso.
"Hey Arthur, did your wifes hospital appointment get in the way of your sexy weekend away?"
"On the contrary Jim, we were banging like the shit house door when the plagues in town. Hospital appointment looming and with her voyeuristic ambition, things got really sexy and I coaxed her into an anal rail gun.
by ChewMyR00t May 11, 2023
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