When you float on your back in a body of water with an erection that sticks out like a shark finn.
I'm gonna go shark finning around that bitch in the deep end of the pool.
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The act of swimming on your back with an erect penis, whilst helicopter dick-ing, to give the the affect of looking like a great white on the prowl
Guy #1: Why is Jim getting arrested?
Guy #2: He was caught shark finning in in the public pool!
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Verb
To swim backstroke with an erection.
'Did you see Ralph? He was totally Shark Finning it over that lifeguard.'Said Paul.
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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.
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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.
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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!
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(Noun) Most ultimate of all aquatic curse words, to regarded with great reverence. Oft regarded as the vivacious cunt!, bloody mother fucker!, or you incontinent nincompoop! of the seas. Marine origin. Use sparingly, and with caution around large bodies of water.
Alternate usage- (Plural)
Sharks Fins: Replacement for Egad, Avast, or land-lubbers translation to Camels Humps!
Caught that sharks fin Aquaman with my girl/guy/Atlantic Cod. I knew she/he/it was smellin' a bit fishy.