typewriter

noun

1. 1

   A device, at least partially mechanical, used to print text by pressing keys that cause type to be impressed through an inked ribbon onto paper.

2. 2

   One who uses a typewriter; a typist.

3. 3

   A machine gun (from the noise it makes when firing).

4. 4

   A prank in which fingers are jabbed roughly onto someone's chest followed by striking them over the ear in imitation of using an old-fashioned typewriter.