Sharkn’t 

Something that is in fact, not a shark.

This wall is sharkn’t.

Sharkn’t by player_catra August 28, 2021

Shartn't

When you gamble on a fart, assume that you've lost the gamble but in fact won

I thought I needed new shorts but I shartn't

Shartn't by ZeilViridis August 16, 2025

Wouldn't shout if a shark bit him 

Description of a freeloader.
'To shout' is to buy someone a drink in Australia.

Wayne: 'Is it just me or does Jason go to the dunny whenever it's his round'
Bruce: 'Nah, that c*** wouldn't shout if a shark bit him!'

Wouldn't shout if a shark bit him by Harry Sargent August 15, 2008

Bull Shark Testosterone 

Bull Shark Testosterone or "BST" is overpowered shit in Grand Theft Auto Online used mainly by people who are shit at the game. It gives you double damage and health for 60 seconds. It also makes basically every weapon in the game 1-2 shot kill. Literally the best idea Rockstar has come up with.

GTA Online Player #1: "Dude I shot this guy like 25 times and he kills me one shot. WTF?!"

GTA Online Player #2: "He is using Bull Shark Testosterone dumbass."

GTA Online Player #1: "FUCK!"

Bull Shark Testosterone by Aemuli September 18, 2018

Shark-talker 

n.
A person who needs to engage in continuous conversation, most specifically conversation in which they are the primary contributor for fear of death upon stopping. I.E. as a shark must keep swimming to keep from drowning.

Man, what a shark-talker, she just won't shut up!

Shark-talker by WeebSurfer November 29, 2011

Mud Shark Trophy 

A child of mixed race who has resulted from the often-unmarried union of a caucasian Mud Shark and a negroid Baby Daddy.

That white woman's half-black child who is following her around WalMart is her Mud Shark Trophy.

Mud Shark Trophy by CycloSarin July 18, 2010

shark therapy 

A highly successful psychotherapy technique that requires only one “session” during which a person comes close to being eviscerated by a great white, but is allowed to escape unharmed.

I tried shark therapy because it’s more experiential and doesn’t require you to talk or have insight; you just feel really great when it’s all over!

shark therapy by Dr Bunnygirl June 5, 2020