Punching
The Century Dictionary and Cyclopedia
noun.
A piece of thin metal stamped from a plate by means of a die, such as the laminæ used in the cores of transformers and armatures.
Wiktionary, Creative Commons Attribution/Share-Alike License
verb.
Present participle of
punch
.
noun.
An incident in which someone is
punched
noun.
process
of
making
holes
in something (rail ticket, leather belt, etc)