1. Term used to describe the extreme level of illegality of a person, place, or thing. An elevated state of hotness.

2. Also used to describe an area with a heavy presence of law enforcement personnel.
1. "I rather ride around in a hoopty blowin on trees, with two heaters in my lap I'm at 400 degrees."

2. "Yo my dude, the spot just got hit, the block is at 400 degrees right now don't come through
by DteK February 13, 2010
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The best god damn truck ever made by gm and half of their fanbase is too damn ignorant to just accept that tbi is better than a vortec. And most of their owners just LS swap because they cant build a real engine.
by LMM IS POVERTY December 13, 2018
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If your friend can’t afford food, buy them food.
“Bro i’m hungry but I can’t afford food” “no worries bro i got you, rule 400”
by Insallahhabibbi March 8, 2023
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An expression that are used by liars to describe how good they are at something. similar to Rickson Gracie's "record."
Joe: Hey, I'm 400-0 at StreetFighter 4 online.

Louis: Yeah right! Don't be a Rickson Gracie.
by GracieHunter April 24, 2009
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When people go through a period of time where they are taking a lot of drugs.
Man this 400 lux season is going to be sick
by Loltash January 8, 2015
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an obese individual that is so obese that it/they require a stadium or racetrack to comfortably graze....

(not to be confused with a nascar event, or a right of passage among college freshman)
wow... hes suffering from the fischman 400
by Joe Schmoe June 16, 2004
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how much it costs to fire heavy's weapon for 12 seconds
it costs 400 thousand dollars to fire this weapon for twelve seconds -heavy weapons guy
by pootis spencer here July 13, 2018
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