When your mechanical pencil is out of led, so you repeatedly and forcefully push the eraser to make sure that you don't have any extra led in there. The sound it makes is like fapping. When led comes out, it is called pencil ejaculation.

n. The birth name of somebody who has changed their name. Most commonly attributed to trans people, but can be attributed to any person who has changed their name. (sometimes written as two words: dead name)

v. 1. To call somebody by their deadname.
v. 2. To out somebody's deadname to the public.