When someone sends you a Mail (over text or in person), it means they joined the KKK and are now asking to be called a Knight.
Alec: Yo! did you hear Jordan sent me a Dead in Mail?
Anmol: YOOO! What! Really! no way! did he really do that??
Alec: yeah man! that's what he sent me.
by KLARI0N November 29, 2022
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