When exchanging a racialy malicious joke unknowingling in the presence of a particular race/person whom would take offence to it.
Bill says "Hey Shady (insert joke). Get it?"

Shady says "Ahhh that black guy just heard you man. That was a Negroidian Slip!"
by LRO1 June 5, 2008
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Bro you just dropped the hard R in front of that colored family.

Sorry, negroidian slip
by Mantis Tobaggan August 28, 2022
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