Top Definition
used when describing, grimey or sketchy events or areas. refrencing the reality show "FIrst 48" where detectives take you through the first 48 hours of a homicide investigation. Most homicides on the show are in ghettos or projects in large inner cities.
yo! did you see that alley way? thats some first 48 shit right there!
by e.m.s March 27, 2008

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