someone who used to be your friend (your buddy) but behaved in such a way that you do not want to know him/her anymore so that he/she becomes nobody (and nobuddy as he/she is no longer you buddy) to you;
Jerry: Hey, that guy there looks like he knows you...
Frank: No, man, he's nobuddy. Maybe some time ago I knew him, but I don't know him and I don't want to know him anymore.
Jerry: What?
Frank: He stole my essay and published it under his name. I couldn't prove it, but since then he's been a nobuddy to me.
by KurtSteinerPL August 11, 2009
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