Slab shit is such a huge shit that you pass out when you shit it. It is so large that is leaves your ass with a black hole for a bootyhole. If you ever have a slab shit, call 911 ASAP as you can die of blood loss
"Yo did that nigga just give birth through his booty?" "Nah nigga that was just a slab shit."
by carey elizabeth April 19, 2019
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