Rumour is a lying jade

Proverbial Meaning: It is foolish to believe in rumours because they are often untrue.

Literal Origins: A 'jade' was a term used for a weak and inferior horse, and was often used to describe a woman but only in a friendly joking fashion.

Common Usage: This proverb is hardly used at all, most English people today will not have heard this proverb. An equivelent phrase that is often used would be, 'don't believe everything you hear'.