Jocular slang term for a eunuch, or in layman's terms, a man with no nads(testicles).
Lucas: "Shit dogg, my ex has been going around school telling everyone the terrible truth about me"
Matt: "What truth?"
Lucas: "That I'm a nonad and that I was born that way." *sigh*
Matt: "Man, you better put the cap on the kitchen cleaner before that bitch kills your P.I. and makes you the school's laughing stock!"
Mark H. Urban Dictionary author since February 2004.