Hydrology, geology, acoustics and more combine in one magnificently muddled mixed metaphor:

When [Emily] Pankhurst ordered her followers to stop bombing the British state and start helping to arm it for the war effort [after 1914], it left some of the most radicalized to fall into “a feminist-fascist estuary formed in the crater generated by Mrs Pankhurst’s pivot from law-breaking insurgency to conformist cheerleading”. — ‘It’s a scary time’: Sophie Lewis on the ‘enemy feminisms’ that enable the far right, The Guardian, 21ii25

Among the baffling questions raised by the metaphor is this: Why “estuary”? It would make sense to say “[fall into] a stagnant and stinking feminist-fascist pool formed in the crater…” But estuaries aren’t stagnant and craters don’t create estuaries anyway. Rivers do when they flow into a sea or lake. What would the river and sea represent?

I’ve no idea. And I would find it very difficult to match that mixed metaphor without making it seemed contrived or confected. Mixed metaphors are a zen thing: for best effect, they’ve got to flow from the fingertips or float off the tongue without effort, welling up from a bottomless crater of bollocks like a meth-smoking bull in a china-shop riding a feral tsunami of unhinged imagery and clashing comparativization.