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400

When one goes hard on a fool, and shows they real and ain't a joke
"I down and went 400 on that nigga"
by YoungBloodPiru April 5, 2015
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400

is a blood gang in harford county that runs a quarter of Edgewood
damn 400 juss jumped another kid
by 21cabbage $$ May 1, 2018
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400

Gang number, referred to as the Four corner hustlers (400) "four" pronounced as foe.
Yeah we don't mess with them, they 400.
by $av April 23, 2014
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400

HTTP status code for 'bad request', usually due to an error in syntax.
He got a 400 error at that site, what could have caused it?
by madept April 2, 2004
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400

1) The 400th positive integer
2) Short for 400 metre dash
1) I counted to 400 today
2) I ran the 400 today
by thegreatwhitehype October 8, 2003
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400

The sum of people you can follow and unfollow on twitter in a single day and get new follow blocked for 3 days, ratio does not matter, it could be top heavy as in 399 follows and 1 unfollow or bottom heavy with 399 unfollows and 1 follow.
I moved to Seattle and got into the local sporting scene, but Twitter 400ed’ my flow, now I have to fidget with tweets only for the next 72 hours, ooh well, urban dictionary has got me covered.
by gauthampanda August 20, 2020
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400

Short for Contempo. A town based on San Rafael, California.
We at 400 slide thru
by BayArea4L June 29, 2021
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