The hole between your top and bottom lip in the 10 degree rain. It tends to expand approximately 2 millimetres per minute. The amount of peach fuzz you produce will limit the expansion rate.
When you shred someones booty cheeks on december 23rd for a good holly christmas cheer. Can also be done on the night before christmas, but be careful don't let santa catch you or he will give you a hardy holly jolly christmas with one of his toys.