0311 

Rifleman MOS in the Marine Corps Infantry Field. A killer.

"Private Davis, you and the rest of the 0311's pick up your packs and move."

0311 by John Marcum May 13, 2005

0311 

a job in the U.S. Marine Corps that is labeled as rifleman, but often performs other jobs that its description lacks.

I'm an 0311 but i carry a 240, a medical bag, a radio, and i also lead point on patrol and sweep for mines.

0311 by sangin July 15, 2011

0311 

In Marine Corps terms (which, of course, are the only ones that matter...), the MOS for one who is gonna "get some." Not to be messed with. They are the backbone of the Marine Corps, and the reason there is a Marine Corps. If you don't believe me, ask one.

Picture an all powerfull God. With that image, you're getting close... but its hard to describe a Marine in any other way, especially one with the designation 0311.

0311 by Jeff Hall July 7, 2006

0311 

Improper pronunciation for United States Marine Corps, Military Occupational Specialty (MOS) code for infantry rifleman.

Listen up turd! It's o311 not 0311! Let it happen again!

0311 by ohthree11 June 14, 2010

smitty_0311 

a guy who is always in vc at 1 AM and does not ever sleep, and will ignore you if you aint a girl

Micheal: Yo james, don't be a smitty_0311, your life will not be good

James: Alright thanks homie

smitty_0311 by NikeBoi June 12, 2023