The U.S. Military's standard issue assault rife, fires 5.56x45mm ammo. Developed to replace the M-14 Rifle that fired larger heavyer 7.62x51mm round. The original M-16 was first issued in Vietnam in 1965 and was prone to jamming because of the gunpowder used in the bullets, the fact that no cleaning kits were issued at first, also the soldiers using them were told it was so "space age" that it didn't need to be cleaned. It was also the first assault rifle issued en-masse to use plastic/fiberglass parts.
Soldier 1: OH SHIT VC'S ALL AROUND US!
Soldier 2: HOLD THEM OFF!
Soldier 1: WITH WHAT?!
Soldier 2: USE YOUR M-16!
Soldier 1: OH FUCK, ITS JAMMED!!!
Soldier 2: HOLD THEM OFF!
Soldier 1: WITH WHAT?!
Soldier 2: USE YOUR M-16!
Soldier 1: OH FUCK, ITS JAMMED!!!
by Burkus December 16, 2008

Not an urban term at all, but a legal one. Short for Modus Operandi (method of operation). One's either habitual or premeditated way of doing things.
His m-o was always smash-and-grab
by Entymol August 13, 2006

by 3487 November 19, 2018

by Harmstm August 21, 2008

A girl that's weird and quirky but still not bad. Sometimes shallow but not as shallow as her friends. She can be great sometimes and bad. She likes draw, game and just chill, she tries to stay shallow so no one knows her pain. (My name is Emma M)
by Kaitie1 March 21, 2019

Loves to play with bootys and his own. Sometimes jerks off on Tuesday’s and sometimes Fridays other times every single day, his mom is nice. He loves girls. Like he thinks about them when he sleeps. He is the moistened version of Charlie sheen because he was just born 13 years ago but he has 1 Year. Has a twin who hates Jews
Damn Daniel , you Daniel m
by Deliciousredgummybear June 1, 2018

Julien M is the hottest, the kindest, the coolest, the nicest, the perfect guy in the world, he is beautiful.
His girlfriend must be the happiest girl in the world.
He can do anything for her. If he loves a girl, he will love her until the infinity runs out and will marry her <3
His girlfriend must be the happiest girl in the world.
He can do anything for her. If he loves a girl, he will love her until the infinity runs out and will marry her <3
Girl 1: This guy is so kind...
Girl 2: This guy is so hot...
Girl 3: This guy looks so cool...
Girl 4: This guy looks so nice...
Girl 5: This guy looks perfect...
Me: Is this Julien M?
Girl 1,2,3,4&5: Oh so this is normal...<3
Girl 2: This guy is so hot...
Girl 3: This guy looks so cool...
Girl 4: This guy looks so nice...
Girl 5: This guy looks perfect...
Me: Is this Julien M?
Girl 1,2,3,4&5: Oh so this is normal...<3
by directioner...<3 April 13, 2013
