The butter than comes from my nuts
Butter=Substance like semen
Hence Menut butter
Also rhymes with peanut butter so thats also cool
Me: Hey Lisa, would you like a MEnut butter sandwich?
Lisa: Yeah. I love peanut butter.
Me: Oh. No, I wasn't talking about the spread made from peanuts, I was talking about my cum.
Me: So, what will it be?
Lisa: Can I have both?
Me: Of course
Guy 1: Dude I'm gonna make some mad cash by selling my homemade menut butter at the menut butter store.
Guy 2: Sperm Bank?
Hank: My menut butter sells by the pound. What can I say?Chicks love it.
Dude 1: Oh man, I just got menut butter all over my hands.
Dude 2: Noob! Get the fuck away from me.
Noun: The ejaculatory contents of a man's testicles.
"Would you like some menut butter on that sandwich?"