Definition
This idiom is used to emphasize that people sometimes behave in very peculiar or unconventional ways.
She was wearing that strange hat, and I thought, 'There's nowt so queer as folk'.
Just when you think you’ve seen it all, you meet someone even stranger, which really shows there's nowt so queer as folk.
He eats his cereal with a fork every day; there's nowt so queer as folk.