The dark circles that form around your eye due to lack of sleep and stress.

When you have to struggle to fit your dick inside of a girl because shes too tight, similiar to stuffing a sleeping bag back in its bag.

Sleeping Bagging, sometimes colloquially referred to as the Reverse Birth, is a proposed sexual move involving two adult humans, one of which must be female, whereby the female's vaginal canal and uterus are accessed in a manner analogous to entering a sleeping bag.

The technique was first described in early 2006; by 2009 the appearance of Octomom raised hopes that a female possessing sufficient vaginal elasticity might exist. This prompted an investigation into its feasibility; however, scientists have since concluded that, if it were implemented, Sleeping Bagging would have a 100% mortality rate for the female. Experts also believe that it would likely result in severe compressive injuries, hypoxia, and psychological trauma for the other partner. For these reasons, Sleeping Bagging remains a purely theoretical conjecture.

When you sleepwalk into your friends room and teabag him while you're both asleep.

When a man, after a rigorous regimen of scrotum stretching, takes his elongated scrotum and rolls it up and places it into the anus of a woman during coitus. Akin to a shocker, only performed by your genitals instead of your hand.

Someone who is a complete whore who will sleep and flirt with anyone to get what they want.

A sexual act in which, after sex, the man kills the woman, hollows out her corpse, and sleeps in it. Another word for this is the tauntaun.