>>30690720Bruxish is based on the state fish of Hawaii or one of its congeners, the reef triggerfish, or the humhumunukunukuapua'a in Hawaiian. This is also not the longest name for a fish in the Hawaiian language.
The bits about its teeth are due to bruxism, also known as teeth grinding. Also because triggerfish have scary teeth in order to eat sea urchins and bite like motherfuckers. They are territorial and will attack anything that goes near their nests, hence the website description.
The lure on its head is a reference to the trigger which triggerfish are named after. It's normally used to lock the fish into a crevice while it rests at night.