shark fin 

Term derived from Jaws which refers to a womens clitoris that is engorged, peeking out of the labia refering to Jaws fin out of water.

that bitch over there had a huge shark fin.

shark fin by IVIunchy December 12, 2006

Shark Fin 

The art of tucking ones junk in the upward position exposing a portion above the belt line.

Did you see how hot the substitute teacher was? Yeah dude I had a shark fin all class.

Shark Fin by Goodmag August 17, 2013

Shark Fin 

To uppercut someone wearing a hoodie from behind, causing the hood to turn inside out. The resulting "fin" is flattened, and stood up straight.

LOL, Chicklette! You got shark finned!

Shark Fin by K Stizzokes December 12, 2006

shark fin 

a blowjob given from the back by tucking the penis behind your legs.

"I pulled my junk behind legs and she gave me a shark fin"

shark fin by captain donkey punch May 17, 2010

Shark Fin 

When ones penis tip protrudes through a hole in their underwear or clothing, either accidental or on purpose, resembling a shark fin cresting the surface of the ocean.

Tim's rush to leave the bathroom left his penis tip dangling from his open fly, revealing his shark fin to the entire office.

Shark Fin by Twatfacekilla326 December 30, 2015

Shark fin 

Sneaking up behind someone and using four fingers jamming them into their clothed butt crack while screaming "Shark fin" in order to disrupt theiron train of thought

I just totally gave that chick a Shark fin when she was giving me a hard time

Shark fin by CnDn_bacon90 November 27, 2016

Shark Fin 

Inserting a hand (or hands) into a persons orifice. The hand must be oriented in a manner that the four fingers lay on top of each other for the "insertion". The thumb points upward to resemble a sharks fin.

Dick and Fanny were having some quiet time. Fanny grew excited, resulting in Dick delivering a "Shark Fin".

Shark Fin by jama76 October 11, 2011