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Grunt is an acronym used during WW2 for troops who had no formal training, or skills. G-general, R-replacement, UNT-untrained,...GRUNT, as they had no special training, they were given rifles and sent to the front.
Grunts do all the fighting.
by Paul Manning August 06, 2003
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
food, something to eat; grunting: the work first used to to describe the act of eating originating in rural upstate New York; often associated with diner food and greasy spoons.
Hey, let's get some grunts at the diner. Let's grunt down on some over easys.
Mama Miehe, we got to grunt down fast....
by youaintwrong August 28, 2009
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
The sound a Tanker's old lady makes while he's in the field.
It is sometimes common for military spouses to "entertain" while their husbands are off training.
Example: The woman grunts when she has Infantrymen over after dinner.
by Whitedevil82 July 06, 2005
ACTUALLY...the term grunt does NOT originate from WW2 as a reference for untrained military personnel..it's a Marine Corps term for any infantry MOS due to the "grunt" made when infantry Marines would lift all their gear...throughout military history, the Marines have carried the heaviest loads into combat and have remained the most effective, intelligent, and brutal force. Marines are known for their ability to carry the most weight the longest distances...with all due respect, NO OTHER BRANCH CAN TOUCH THE MARINE CORPS...don't get mad...i said with all due respect!...and another thing POG is the correct spelling for a non-grunt...it's an acronym for Personnel Other than Grunts...
Marines who aren't grunts should've joined another branch. Don't fake the funk.
by GRUNTMOFO June 03, 2010
*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."

"Infantrymen of the US Army and USMC are grunts. Unless their special forces."
by Dave September 13, 2004
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