The world likes to reduce women. For instance, a lot of underwear is designed as if wearing underwear were a purely aesthetic practice undertaken by a strata of human that stays completely still. That is not how we design underwear.
We named our knickers after some of the cool things that people get up to whilst wearing our pants. And we're naming our bras after some of our favourite gender based insults, names used to try and reduce, belittle and contain women. Basically for the Lols.
Let us introduce you to 'The Fish Wife'.
Most insults of this kind work on the same principle. Comparing the subject unfavourably to a trope of woman that is unacceptable to the mainstream. This insult is used on 'well brought up girls' to remind them that they don't want to appear poor. Fact. Poor women have to shout, because they have to do stuff like sell fish. Unpoor women should keep their voices at a medium to low volume, unless they're incredibly unpoor, in which case they could go for 'eccentric' boomin, or bossing underlings around with divaish panache.
The 'Fish Wife' is a delightful vintage sexism, I've wheeled it out partly for nostalgic purposes. But, although the phrase itself has fallen out of favour, the sentiment is still relevant- the 'Calm down dear' of a woman getting all het up. The desire that women should present themselves prettily, on the outside and on the eardrums. That anything too direct, too to the point, too challenging, is distasteful. That a woman in the heated bloodlust of a tournament final, shouldn't raise her voice or throw her racket.