To stick your finger into a friend's anus in an attempt to make him ejaculate so that you can have your turn.
When you're twos up on a girl and your mate is going on forever you might execute the Dirty Math.
When you're twos up on a girl and your mate is going on forever you might execute the Dirty Math.
Oh man I was having the best sex of my life with a filthy hookup last night until Phil pulled a Dirty Math on me. He couldn't wait to chow down on her creampie.
by No 1 in Japan June 19, 2020
An activity associated with being a member of a group of deviants. Specifically used to entice men into a group with the promise of objects to hump or penises to rub.
Has also been associated with less reputable religious cults and secret societies.
Has also been associated with less reputable religious cults and secret societies.
by No 1 in Japan February 10, 2021