Namesis

Your namesis is someone with the same name as you.
Dude A: "It's crazy - I went to meet our ad agency today and there's a guy there with the same name as me. He's got a stuffed cat on his desk and he's clearly much more interesting than me".

Dude B: "That's your namesis man, you're in deep trouble."
by Skipperton March 17, 2011
mugGet the Namesismug.

Namesis

Someone with whom you cannot stand because of their name
I've never gotten along with a Jessica... Must be my namesis.
by greenie1975 April 23, 2015
mugGet the Namesismug.