Noun meaning someone who is not a homosexual. Usually used in a masculine sense but my also apply to lesbians.
by jacobpaulbby June 3, 2009

Did you hear about Brian that extreme anti gay activist? He got caught recently making out with a guy. What a NoMo!
by Dimples701 September 7, 2013

My nomo does not pay any child support.
by zeepascal May 10, 2011

if homo sapiens means "the wise one" then nomo sapiens should be the one who lost his/her wisdom, right?
by kelamist April 28, 2020

A derogatory term for heterosexuals. Whereas "mo" is a socially accepted, gay friendly term for homosexual, "nomo" is used to ridicule heterosexual activity and behavior, implying that the individual is not a "mo."
Guy 1: "Yo, I think Adam just made out with a chick......"
Guy 2: "Really? What a nomo..."
Girl 1: "Does this skirt make my ass look big?"
Girl 2: "I don't wanna check out your ass, I'm no lesbo."
Girl 1: "Ugh.. don't be such a nomo.. just tell me if my ass looks fat."
Guy 2: "Really? What a nomo..."
Girl 1: "Does this skirt make my ass look big?"
Girl 2: "I don't wanna check out your ass, I'm no lesbo."
Girl 1: "Ugh.. don't be such a nomo.. just tell me if my ass looks fat."
by chillassmo January 7, 2010

After ejaculating into one's own hand. You then wind up, as a pitcher would, and throw your seed at a woman, hopefully hitting her right in the face. Named after the MLB Pitcher Hideo Nomo who has a famous windup.
After that guy beat off in his hand he threw it at that girl and nailed her in the face. Wow, I can't believe he Hideo Nomo'd her.
by David Sherman Jr. August 16, 2006
