short for "marine boot", a very junior marine usually in transition from boot camp to MCT/ITB or fresh out of MCT/ITB and newly arrived at their new command, that run around screaming oorah, semper fi, and kill, completely fresh and clueless as to what the Marine Corps really is and are lost on how real marines actually act in the world, they are fairly entertaining to watch because they look like lost puppies wondering around doing their maroot things an aternative spelling is "marute"
New River Marine1:lets goto the MCX

New River Marine2:are you crazy you know its Maroot Monday, all of the maroots from Geiger will be here!
by Lance coolie underground February 11, 2010
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the name of a Santa Fe New Mexico jam band that started in early 2010 and plays a mix of blues, rock, country, and reggae music.
Are you going to see Maroots play next week?
by equus9 April 2, 2010
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