as queer as a nine bob note

The phrase "as queer as a nine bob note" is an idiomatic expression primarily used in British English to describe someone or something that is considered strange, odd, or dubious. It suggests that the subject is unusually peculiar or unconventional, just like a non-existent or counterfeit nine bob note (nine shilling note) would be in the old British currency system. The phrase often carries a pejorative connotation, implying that the person or thing being described is not genuine or authentic.