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1 definition by Robotsforabe

A: The the type of firearm which fires a .45 calibur, .45 of an inch wide, bullet. The origonal firearm capable of firing this round, the Colt 1911A1, was designed by the Colt Firearms Company in 1911. Due to the weapon's high-power, which is more powerful than a 9 milimeter round, the .45 calibur bullet is able to stop a potential assailant. Due to this capability, the weapons calibur has become quite popluar with law-enforcment, security, and even Military groups.
A: I pulled out my Forty-Five and popped a cap in that White-Boy.
by Robotsforabe October 28, 2003