Blåhaj

Ok please don't be offended, I'm just innocently unknowing and only recently started identifying as something like enby transfem. But what is the meaning of the blåhajs? Why does a (admittably cute) plush Ikea shark have such relevance here? And can you maybe also enlighten me about common pitfalls I should avoid? (Like a wrong model, wrong spelling, wrong way of cuddling, ...) Or how strict are the blåhaj expectations there? Thanks <3