said to reinsure someone to make them believe you are not into beastiality; used when saying something that can appear to be a statement of beastiality
man: "What breed is it?"
pet owner: "Its a labrodor rechever"
man: "That is a cute dog, no beasties though."
A theory derived from the notion that both male and female beings have an eternal fascination and attraction to the female's breasts, no matter the being's sexual orientation.
Male- "Wow, you have got some swell tits."
Female- "Wow, I do have got some swell tits."
Profesor- "That's the Theory of Breastitivity.