A nickname to describe a boy who thinks he is a man, but is not. This boy often prides himself on talents he doesn't have, and constantly lets down those around him, while embarrassing himself and others in the process.
Jeff: Dude guys I'm gonna jump off the stage while playing guitar and run around during the performance
Bystanders: Haha, I can't wait till Shilgz jumps off the stage. Its going to be so pathetic!