aquatic version of a cougar; also a cougar that tries to hook up with you at the beach.
damn look out for that shark, you mom wouldn't approve.
by supercalifradilisticexpiallydo March 01, 2010
To put your hands parallel to your crotch and hump an object. preferably your freinds phone, tv remote, headphones, computer, coffee, ect...
Dan: "Hey Adam guess what?"
Adam: "What?"
Dan: "I just sharked your phone! Again!"
Adam: "You suck... Wait again?"
by Cupcak3 August 18, 2009
SHARK> You might look at but would never swim with ;)

An attractive female under the legal age or consent in the UK.
Mike; Titch, on your left!
Titch; shark?
Mike; shit..she is fit tho :o
by DJDEEZUK May 18, 2009
A person who cracked a joke no one laughed at.
Guy #1: Dude, last night was amazing.

Shark: Your mom was amazing last night too.

Guy #2: Shark.

Dude #1: Your gay.

Shark: Your dad is gay.

Dude #2: Shark.
by The Jock 17 August 08, 2010
Another name we like to use in reference to Po-Po, or Police. They drive around all slow, hide in the dark, and wait for unsuspecting prey to go by. Then they dart out after them, chase them down, and completely ruin their day by giving them a stupid ticket for something.
"Man, watch out, there's a Shark over there, parked around the corner. Slow down..."
by Shelbykitty March 05, 2009
A verb.

To shark refers to more than one person randomly walk up to an unsuspecting victim, and stare into their eyes, with a straight face. Objective: completely freak out the person, make them uncomfortable.

Also, while sharking, you cannot touch the person. Just get close.
Me and five friends sharked (name) and she almost cried.
by Don Bounskibibal December 07, 2008
To become so desperate and outrageously bad about something, that your action has caused you personally to "jump the shark," making you a shark. Also, to cop out.
"Mike is hanging with his girl again tonight instead of going out with us."
"Ya man, he's totally sharked it."

"Hey guys, I think I'm going to stay in tonight and watch my crash DVD instead of party with you guys."

"This party is sharked, lets go."
by Patrick T May 14, 2008

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