In skateboarding, pushing the skateboard with your front foot. If you're normal, you use your left foot, and vice versa for goofy.
by falc0n November 12, 2003
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The name given to someone who cannot seperate real life from the online. A MONGO typically harasses people, acts like an asshole, makes frivolous threats and pesters honest contributers online.

MONGOs also get very aggressive when their faults are pointed out.
''Dude, stop being an asshole. We don't need you to act like a MONGO and block the guy. He only said "hi".''
by I'mTehKettle July 23, 2006
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It's when you push off with your front foot on a skateboard. Apparently only posers push mongo. I don't get why it matters so much which fucking foot you push with.
by Ziggy7 March 11, 2013
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Mongo (MŌÑ-GÔ) - juggernaut-like male distinguished by heavy masculinity, large stomach and hyperactive sexual habits and tendencies. Mongo is considered an alpha male in many cultures. Known to be bullet proof and highly intelligent, Mongo is feared in many countries across the world.

Mongo uses many tools to control those around him and spread fear into the society, with the main being the oversized cauk that he refers to as the Hissing Viper.

Mongo is the only person in human history to have naturally impregnated male testicles.
Person1: Oh no its Mongo. Cover your exit tunnel Dude, because he is going to come right in!!!

Person 2: No I dont want the memory of the Hissing Viper in my bowels!!!

Person1: there will be no memory. Once Mongo is done you will be out cold and shredded.
by Royal_Rake March 21, 2016
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Mongo is a skateboard pushing style. Mainly used by tools who can't figure out how to skateboard. You push with your front foot instead of your back foot.
Look at that kid harrison over there he pushes mongo!
by xxchiodosxx1128 April 7, 2009
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In the construction industry, scrap metal (usually copper) sold by workers for cash and t-shirts.
Wow, clean copper mongo is going for more than 2 bucks a pound!!
by Roberto Jesus June 24, 2006
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Anything salvaged from the trash.
Your trash is my urban treasure!
The night before trash day is mongo primetime.

My garden hose is a mongo score. It's in perfect condition!
by mandingoe July 8, 2004
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