Related, but different... A tired phrase that I wouldn't mind never hearing again: "Don't go there." (declaratory) "Don't even go there!" (declaratory/exclamatory) "Don't even..." (abbreviated declaratory, when time is of the essence) "Do not go there." (for contraction-phobes) "Do not...
"Your name is mud." This becomes far more interesting when you learn that Dr. Samuel Mudd was a surgeon who helped John Wilkes Booth with his broken leg after he lept from the balcony. Mudd was convicted of conspiracy for his assistance! (This is alluded to in the story on the Alamo in this...