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) 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.
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

by mark March 29, 2004

A MAC gun is one of the UNSC's most powerful non-nuclear weapon. A MAC gun fires a ferrious core. The gun fires the 3,000 tonn projectile at 4/10th the speed of light and is the only known weapon to break through a covenant shield in one shot. MAC guns can be put on a UNSC ship or stationed above an important Earth colony
by Chris000 July 17, 2006

by cj October 17, 2003

by Bryon Tucker January 4, 2008

When you're late after spending too much time eating a greasy meal and in the process of running you let out small flatulence at separate intervals synchronized with your steps so that it sounds like a MACHINE GUN. MACHINE GUNNING.
by Mounstah Bites December 26, 2010
