"Nohomobro" refers to the act of doing something that could be viewed as homosexual but in reality isn't or has no homosexual purpose behind it. As a result, the person doing the act simply says "Nohomobro" and the action is thus deemed "non-homosexual" when used reasonably.
1) Fred had to weigh in naked to make weight in wrestling and his friend Joe happened to be in the locker room
-Joe "Aww dude, that's gay!"
-Fred "Hey, Nohomobro."
2) A doctor is giving his patient a prostate exam, he says: "Nohomobro"
3)Your friend says a funny joke and you reply after laughing "I love you dude!" followed with a "Nohomobro."
Ruler of Lake Titicaca. Rumored to have a bunghole that gets very angry if it does not receive toilet paper. Cornholio the Great is often seen walking around with his shirt over his head and his hands in the air, chanting songs about his power, and his bunghole.
"I am Cornholio! You do not want to face the wrath of my bunghole, for I need TP!"
Butthead: Shut up, Beavis! (uh huh huh huh)
Beavis: Um, okay. (heh heh heh heh).