The only word on urban dictionary with no sexual definition
"Wow I'm surprised shark has no sexual definition on urban dictionary"
An animal that resides underwater, you sick bastard. Get some help.
Jim : Hey let's do that 'shark' thing together
Tom : Jim what the fuck is wrong with you
Girlfriend: let's shark tonight.
Boyfriend: Which beach do you want to do it on.
The real definition is a aquadic sea creature that lives deaper on the ocean and feeds of smaller fish.