Definition of "pencil eraser" [pencil eraser]

• An eraser made of rubber (or of a synthetic material with properties similar to rubber); commonly mounted at one end of a pencil (noun)

WordNet. Princeton University. 2010.

• "The particular feel of the pain, not like a pinprick or a knife cut, but both blunter and sharper, a pencil eraser pressed hard against the soft meat of the tongue like a cattle brand."