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To be ready, on the edge. Usually associated with the military.
Stay frosty, they've been setting up ambushes on the roads four clicks ahead.
by BrownShoes August 05, 2003
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2
The act of being cooler than "cool." Superior to the word Swag.
Hey, did you see those two guys over there? They are keeping it frosty!
by Young-Ceezy October 19, 2011
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3
A word, in certain context, used to describe a person under the influence of marijuana. This word can also be used to describe someone under the influence of a hallucinogen, such as LSD.

A synonym for: baked – blasted – blazed – blitzed – carmelyzed – crossfaded – crunched – crunk – faded – geeked – high – high as a kite – lit – lit up – low – ripped – sketch – skunked – smoked out – stoned – stuck – tall – tweeked – zoned.
Dude, that weed was great. I am frosty as a motherfucker right now.

Lucas: Hey Tommy, how you feeling?
Tommy: I'm so frosty I can't see straight...
by Captain Shabby October 07, 2014
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4
to be slightly rude or standoffish, but trying not to make it noticeable.
No she wasn't being mean to be, but she was acting kinda frosty.
by lovemj411 February 28, 2011
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5
A common definition for marijuana buds that are are covered in trichomes. So many trichomes, that the bud looks more white than green.
I used my own home made organic soil, and with the right nutrients, my plant yeilded some pretty frosty buds.
by Danbridge June 10, 2013
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Marijuana that possesses a large quantity of THC resin crystals on the outside of the buds.

Also used as a term among potheads as something cool or great.
Pothead 1: "Yeah dude, check this nug of OG I just picked up."

Pothead 2: "Daaaamn that shits frosty! Roll it up!"
by Smoker X December 26, 2010
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7
Wendys, a long establish fast food restaurant in the 20th century, served this peculiar item. Too thick to drink, and too thin to call ice cream. Since most fast food establishments sold milk shakes, many customer would view the frosty in similar fashion and use a straw to partake. The frosty was so thick that one couldn't slurp it until it had proper time to melt. 20th century afro-american woman are thick as well, and thus, the name began.
Yo, you see that honey in those jeans. Man she thick as a frosty. Yo, her new nickname is frosty.
by dehubb133 November 27, 2007
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