taking a grunt is also known as taking a shit.
"dude, c-ya in a minute. gotta go take uh grunt!"
by yo mommasa pimp April 20, 2006

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Term of affection for that tired, filthy, thirsty, hungry, footsore, ripped-trouser, camouflage-painted, lean, mean, son a b*itch who has kept the wolf away from the door for over two hundred years.

US Marines - (03--)
US Army - (11-)
Grunts do it better!

Those fuckin' grunts are cocky.
by Marine Infantry March 07, 2012

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little dog-like aliens in Halo that is used as cannon fodder. since they are cowardly from their small size it is fairly humerous to kill them in mass.
I slaughtered a pack of grunts with a single grenade.
by Crazy Carlos February 18, 2004

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The noise one makes when entering work and acknowledging co-workers. The grunt is understood between the two, and is usually stands for "fuck, another day at this shitty place!"
When I saw Fred as I walked into hell...I mean work, we looked at each other and grunted. He must be disgruntled too.
by ocu-pie May 04, 2003

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To emit excretement.
"Wait up, I have to go take a grunt."
by x January 22, 2003

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Grunts.... Age of the Corps, 234 years of ass kicking, ball busting, days of death and destruction. Where every day's a holiday and every meal's a feast. We are A.L.I.C.E. pack operated, M.R.E. feed, beer cooled, green amphibious monsters who thrive on war. GRUNTS, Ooh-Fuckin-Rah!!!
Those Marine grunts are some baaaad motherfuckers!
by USMC MARC February 04, 2010

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A deep manly grunt performed by a lesbian. It is a signal to attract other lesbians to the area. Also used as a signal to alert the other lesbians that a new lesbian is in the perimeter.
A lesbian enters the room and alerts the other lesbians of her presents by excreting a very loud, manly grunt.
by DykeMomma1 April 09, 2009

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