What's up with all the memes/jokes from men about women smelling like fish down there? Anyone else confused/tired of it?

mine just smells like skin, like how my armpits smell and another smell I can best describe as the back of a games console when it's hot. NEVER what I'd describe as "fishy"

Just saw a post where this guy said the reason he isn't into women is because every girl/woman smelled like "rotten lobster" down there and I'm just sitting there confused. TMAU is a thing and can be very debilitating, but it's also quite rare and affects both men and women