The Mongolian Mitten
The frightening act of a mans hand, usually after an extended time spent in the cold winter weather, entering the females asshole and the spreading his fingers wide so as to warm his hands prior to sex.
The greasy italian came in from the cold pennsylvanian winter with near frost bite and in desperation prior to sex stuck his hand into his unsuspecting girlfriends ass to warm his hand with the nice environment of her inner sphincter, also known as giving her the Mongolian Mitten.