3 definitions by Jizza420

Top Definition
An M100 is a Semi-Automatic Carbine Assault Rifle made by the American gun company Calico. It is called the M100 because of its high capacity clip of 100 rounds + 1 in the chamber. Was very unpopular due to the assault weapon ban which has since been repealed and M100's are now legal for civilians to possess in their respective state. The military has yet to contract with Calico thus leaving Calico a relatively small gun manufacturer. In some states is also referred to as a "long rifle" making it legal to posess in states with an assault weapon ban.
Josh: "Did you hear all of those shots last night?"
Dave: "Yeah my boy brought his dad's Calico M100 to my house and we took potshots at that tree stump"
Josh: "Damn I musta heard at least 100 shots fired"

2. The Notorious BIG in the song Somebodies gotta die references it "What kinda shots my nigga I see mad holes. What kinda gats? Hitchlinks, cocks, and calicos"
by JiZZA420 November 01, 2008
The course of military study that attempts to define the study of the psychological and physiological effects of combat on humans.

The term was invented by Lt. Col. Dave Grossman ret. of the Killology Research Group in his 1995 book On Killing: The Psychological Cost of Learning to Kill in War and Society.

(Very few colleges actually offer killology)
1) Hey man, today I learned in Killology how to create a diversion to flank and kill the enemies. I am going to get an A!

2) Killology is a controversial major in college.
by jizza420 April 06, 2009
A needle, or syringe used in the shooting of various things i.e. heroin, cocaine
"Yo son go to CVS and pick me up a pack of pins yo"
by Jizza420 October 10, 2008
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.