The act of "going deep" in the anal cavity of another being (human or not, we don't and won't judge) for sexual activity. Can also be inflicted on one's self (again we don't and won't judge).

To engage in the act of "going deep" into the anal cavity of another being (human or not, we don't and won't judge) for sexual reasons. Can also be inflicted on one's self (again we don't and won't judge).