To masturbate vigorously, to the point where one loses himself completely in the act. Many people who are caught Tus Wutching have been found with their face frozen in morbid delight like a petrified joker. Tus wutchers usually have incredibly foul breath and poor communication skills.
This word describes when you have lost all creativity and used up every idea ever, but need to keep producing content. In essence, any work you do becomes quantity over quality.
Person 1: "Shit! I've ran out of things to write about in my book. What do I do?"
Person 2: "Well, it seems like you've watchmojo'd yourself."