I like people to talk rot. It's man's only privilege over the rest of creation. (Google)
“Oh, don't talk rot, Joyce,” her mother said, holding the candle out in front and quickly looking at the foot of the stairs. “Of course I am not frightened. It is just that these steps are terribly dangerous. Come on now, hold my hand so you don't fall, and we'll see who's frightened.” (Google)
Just watch your mouth and don't let it talk rot which doesn't make sense. (Google)