一鱼七秒一猫九命
[yī yú qī miăo yī māo jiŭ mìng]
'One fish has seven seconds of memory and one cat has nine lives.' Fish are often believed in popular culture to only have a seven-second memory. Cats, meanwhile, are commonly associated with mythical tales of having multiple lives, generally said to be nine. It could suggest fleeting moments and longevity coexisting or simply being a fan of animal lore. Users may opt for this playful yet profound user identity.