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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A person who constantly seeks opportunities to kiss ass.
Watch ot for Jones, he's a Butt Shark.

Smith will Shark you to get ahead.

That asshole Jackson sharked me in front of Maintenance Control.
by Ed USN RET March 10, 2006
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A fake shark with a big butt in the back which stole captain captains butt
by Orman November 3, 2016
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A mini shark that lives in the river and nibbles on your butt
“Don’t stay in the water too long, a butt shark will come and nip your tooshy
by Chika19 February 28, 2019
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Gay, especialy in the cruising, predatory sense
Don't send your little bro for the stuff, the dude is a hard core butt shark!
by Yousseff March 30, 2008
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Some one who likes to look at butts. Primarily someone who gropes butts at key moments.
Get your hand of my butt, you butt shark!

He's a real butt shark, always scoping out the butts looking for a kill.
by Ziggamus October 2, 2007
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When you suprise someone by sticking 4 fingers up their crack quick like. This is done best when they are wearing underwear or other loose fitting clothing and they are walking up the stairs.
My guy just gave me a fucking butt shark! No way is he gonna get any tonight...
by jessiejane27 January 4, 2011
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