hairyback
When your friends has a hairy back and you want to laugh but you don't want to hurt their feelings so you try to say it another way.
Dee: "there goes joe..."
(joe takes off shirt while walking away)
Donna: Hairyback, joe!
(joe takes off shirt while walking away)
Donna: Hairyback, joe!
Hairyback Ninja Turtle
Accidentally falling out of a ladies Vagina only to reinsert in a hurry and enter her Anus
Michaelangelo slipped out of April's Pussy and ended up Cowabunging her in the Sewerpipe, causing a Hairyback Ninja Turtle