Pinch

n.
  1. A close compression, as with the ends of the fingers, or with an instrument; a nip.
  2. As much as may be taken between the finger and thumb; any very small quantity; as, a pinch of snuff.
  3. Pian; pang.
  4. A lever having a projection at one end, acting as a fulcrum, -- used chiefly to roll heavy wheels, etc. Called also pinch bar.
    5. At a pinch, On a pinch ,
    in an emergency; as, he could on a pinch read a little Latin.