The fontanelle, or soft spot on an infants head

to sport a boner, fly the sail at full mass, rock hard, etc.

extemely lazy tactic used by writers when they run out of ideas. basically it consists of having some kind of stupid event occur that sets everything back to zero. it's most commonly seen anime.

After eating to much, making yourself throw up by pushing the reset button.

A feline anus.

The result of heavy drinking the previous night. The act of taking a large poo, cleansing your lower intestines of any obstruction, resetting your bowels to their original empty state.

The intentional use of alchohol to aid in the evacuation of one's bowels.

The butthole on a woman (also known as the Balloon knot). When pressed it may only work 50% of the time. When taking her doggy style you press it with your thumb and she jumps and rejects, it works and ruins the moment. But if it dissappears in her ass then it doesnt work and you can continue.