KCUF

"Hey Kids! Do you wanna learn a new word. Its called Ass. Its another word for youre butt, say it often, especially to youre teachers."

KCUF is a character in the granny torrelli series. He is a robot made by Granny Torrelli and Sophie to "babysit kids," but he actually teaches them how to swear and lets them try drugs. He has a giant F on his torso, a U on his back, and a c and a k on his arms.

Trivia
His name is Fuck spelled backwards. :D