The act of deleting one's You Tube account, usually committed in a moment of personal crisis. You Tubacide is often followed by feelings of regret, and the opening of a new account with a screen name closely associated with the You Tuber's previous screen name.
Dumdiddly committed You Tubacide, but opened a new account. His new screen name is Dumdiddlydork.
by klusnark October 07, 2009