machine nut
A machine nut is when two guys try to cum as fast as they can. The one who stops first is called a chicken, and the winner gets to shove his junk up the chicken’s butt until he explodes inside him.
My cousin did a machine nut with his buddy. He cried when he lost.
I tried a machine nut and only lasted two times. I’m a chicken forever.
Machine nutting is the worst. My friend’s butt is still sore from last week.