pen-clicking

When some one clicks a pen for the hell of it or to annoy someone.

Mike: *Clicks pen*
Sally: Stop that pen-clicking!

Pen Clicking

When you are in your classroom taking an important assessment. You masturbate to relieve the stress of the tough exam. As a coverup for the fapping noise, you click your pen at the same tempo as your sneaky strokes. Therefore covering up the noise.

Hey Maximillian, did you end up passing that exam?
Yes! But there was no way I could have passed it without Pen Clicking!