When you swing your penis up and down so it goes between your legs. When it goes between your legs it will reach between your ass cheeks and your ass cheeks will clench on your penis and you will pull it out rubbing along the taint eventually leading to ejaculation. Right before your penis gets clenched between your ass cheeks it makes a huge clap noise upon impact so you are essentially clapping your cheeks. This works best with shit stains in your ass cheeks, they work as a lubricant.
When ever I clapturbate my family hears me and complains they worry it will give me an STD.
to masturbate and cry at the same time. Usually performed by male graduate students in the sciences or engineering. Common causes include: no women around, ugliness, poverty, stress, being dumped, etc.
the act of using a fecal bomb as an excuse to leave your group of friends when you are only leaving to go masturbate.
Person 1: holy shit to a have to crap!
Person 2:nah, i see your boner, you are just trying to go crapsturbate.
Person 1: no i'm not
Person 2: yes you are
Person 1: this conversation is long Person 2: yes is it, are you going to crapsturbate or not?
Person 1 leaves to masturbate.