To teach someone (usually a black person) a lesson by using beatings and violence to get the lesson across.

This technique of teaching is especially used by retarded parents with very low IQ, sometimes zero IQ or negative IQ to raise their children. These Parents are not always necessarily black.
Homie 1: that nigguh robbed me again. It's the second time this week.
Homie 2: Dawg yo gotta go ova dere and school a nigga.

Ignorant parent to offspring: Bitch did you make all dis mess in da crib, while I was out giving brain for a living? Now I gotta school yo ass.
by DaRealestDawgfromDaBlock November 4, 2018
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A school nigga is a type of negro (The age does not matter) who hangs out at different schools because it does not have anything to do. This negro is a very aggressiv type and usually are not educated, so you can not communicate with it. Beware!
"Man that nigger always hangs out at Westbrook high, he is such a School Nigga"
by DEATH TO ALL NIG NOGS November 23, 2017
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