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When you draw teeth on your boyfriends butt crack, and proceed to make shark noises while you spread and close the butt cheeks together.
Girlfriend: Hunny, Can I give you shark Butt tonight?
Boyfriend: OK,I guess.. But only with the blue sharpie...
Girlfriend *draws teeth on butt crack*
Boyfriend: Is my butt hairy??
Girlfriend: Your butt? You mean daddy shark?? *RRRARR I'm a big mean shark...* (spreads and closes butt cheaks)
Boyfriend: giggles
by missninnylove May 16, 2006
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