MEANING: Said to someone who remains silent when they are expected to speak.
ORIGIN: There are two stories on how this saying came into being. The first one says that it could have come from a whip called “Cat-o’-nine-tails” that was used by the English Navy for flogging and often left the victims speechless. The second one may be from ancient Egypt, where liars’ tongues were cut out as punishment and fed to the cats.