It's probably important to put the H.P. there if googling that.
Today, I was wondering if the phrase 'something seems fishy' had something to do with H.P. Lovecraft. If you don't know what I'm talking about, read his The Shadow of Innsmouth. Essentially, everybody in that town were relatives to some sort of underwater ... frog ... men ... who worshiped some ... ya know ... elder god or something.
So ... I wondered if saying something seemed 'fishy' about a person, implied that there was an aspect about them which seemed a little off, like they had risen from the depths of the ocean to breed with our women and begin a race of ... well ... not supermen ... but severely strange-looking recluse weirdos who don't like to go out and quake behind shuttered-up windows and who probably have slightly translucent toes.
Because that'll show the normals.
But then I figured nawww. Probably just means that fish stink when they rot, and people find that suspicious.
I do think it would be great to turn that around, however. If I were, say, out buying fish which were perhaps a day past its hypothetical due date, and had a (shockingly) fishy scent about it, I could complain to the manager: Hey! 'Scuse me. Phew! This fish smells a bit like it worships an elder god ... see? I want a discount.
I also wondered if fans of Lovecraft dressed up like godlike squid monsters to attend a convention called Necro-comic-con. But try not to think about that. You're better off.