Slang for ejaculating
Kip: Grandpa hurry up in there you have been in the bathroom for over an hour
Grandpa: I'm making a menace
Kip: Okay I did not need to know that
Grandpa: I'm just saying
One day a week where you can be a menace without being called a jerk. Put your black airforces on a go be a menace.
Today is menace Monday you better watch out because I'm not being nice today