Words can be meaningless. If they are used in such a way that no sharp conclusions can be drawn.
The Meaning of It All: Thoughts of a Citizen-Scientisthe knows that it's impossible to tell a wolf from a man if he keeps his chin up and his teeth clean.
Sharp TeethThe stones were sharp, The wind came at my back; Walking along the highway, Mincing like a cat.
Theodore RoethkeI feel like I just grabbed a big juicy worm with a right sharp hook in the middle of it.
Lyndon B. Johnson