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Grunts are U.S. Army soldiers. The word "Grunt" is used in a similer fashion to "Jarhead" for the Marine Corps.

In recent times, Grunt is used to refer to an Army soldier of the combat arms branches, being Infantry ("Grunt"), Armor ("Tanker"), and Cavalry Scout ("Girl Scout") although it is still understood to mean the Army in general.
At that last range, the Grunts practiced marksmanship. We did paperwork.
by ImAGrunt January 11, 2007
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something one must do while trying to poop when constipated.
I told the constipated girl on the toilet to grunt.
by x September 19, 2003
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*A type of grumbling noise made on certain occassions, such as being hit by something, or being exasperated, etc.

*An ordinary soldier.

*Synonym for ape, a person of low intelligence.
"I grunt when I have to shit."
-me

"Infantrymen of the US Army and USMC are grunts. Unless their special forces."
-me
by Dave September 13, 2004
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The sound made by a person while eating.

Hence, grunts are what you eat. Food.
Whoa, man, I'm hungry. I've got to grunt.
by Cap'n Bullmoose April 23, 2005
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noun and verb poop

from a misreading of "to kill a mockingbird" when they poke under the bed with a broom handle. a grunt under the bed.
A. hey, cover for me, i'm on cigarette break!
B. huh uh. you just had one.
A. yeah, i know. i didnt want to say, i'm actually going to do a grunt.

oooh, did you see that nasty grunt in the shitter? it didnt flush!
by dr. roland james nesbaum III October 18, 2005
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someone that work's for someone regardless their position in a company. Usually a white collar worker that drinks allot of coffee to get through the day and spends about 6 hours at work on Facebook instead of doing tasks for his company and counts down to Friday every week.

Someone usually in the morning on the highway driving like zombie fighting with traffic.
Tom is such a grunt, his BBM status changes to WHOO TGIF every friday.
by super cool adam from toronto August 20, 2011
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Referring to US Marine Corps Infantry personnel. GRUNTS are anyone with the MOS beginning with 03 as in 0311 (Riflemen). The term originating during World War II to abbreviate the term "Ground Reinforcements Untrained," referring to tons of troops being sent to combat with little training. The term has taken on a more affectionate meaning for our killers in the Marine Corps Infantry today.

The term GRUNT also refers to those doing their time commitments and getting out during the Vietnam War; as opposed to Lifers who were career Marines.

The term POG is the opposite meaning "Personnel Other than Grunt"
Army dude: Man you GRUNTS are tough!

Marine GRUNT: Stay out of our way before you catch one between the eyes ya damn Hoo-Ah

If John Wayne was a Marine he'd be a fuckin' GRUNT.

POG: Damn I have so much paper work to do

GRUNT: Stop bitchin' you fuckin' POG
by Born2Kill_USMCdotMIL December 16, 2009
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