n. A Thompson submachine gun, as used by Prohibition-era gangsters. So-named because the sound of a Tommy being fired in the distance resembled the sound of typing on a typewriter, and because the weapon was in popular use throughout south-side Chicago in Al Capone's day.
During cunnilingus, the act of using your tongue to draw letters, numbers, or other symbols over her vagina. This is commonly done with the alphabet, but can also be used for spelling out song lyrics or lines of Shakespeare.
I got bored while eating her out, so I started up the Kenosha Typewriter and started spelling out the Pokémon theme. She loved it.
The act of pinning someone down and jamming your fingers into their collar bone, "typing", and then backhanding them to start a new line on the page. The processes is repeated as many times as desired.