When one consumes a mass amount of spicy mexican food thus paying for it the next day when one encounters severe explosive diarrhea where leftover floaty mexican food can be seen. This usually leaves behind fine toilet art.
Ex. Sara goes to Don Lorenzo's and eats the entire dish of chicken chimichanga on top of a basket of tortilla's with salsa and guacamole. About an hour later she sprints to the nearest restroom and experiences a mexican toothache.
Applying toothache medicine to your partner's anus . The effect of this is to allow anal sex before they know what hit them . A condom should be worn lest you become numb also .
This is best done without the others person's knowledge .
After giving her a Mexican Toothache , getting into her rear was no problem !