L shusheens - A strong insult that makes the person you yell it at automat

A strong insult that makes the person you yell it at automatically say it back to you like a broken record.

You're an L shusheens? I'm gonna be an L shusheens too, and I'm gonna beat you up.

I just got called an L shusheens. I'm gonna take that to the grave.

You're an L shusheens, and I'm gonna make you eat lunch alone.