The catch-all Spanish phrase when you don't have a clue what is going on. It can be used to mean almost anything. Possible uses include:
1. An urgent way of settling someone down.
2. A
description of yourself or
anything else.
3. A reply to some random Spanish question.
4.
Anything else.
(Blind guy stabs your friend)
You: Cómo te llamas! Cómo te llamas...
Random dude #1: Hey!
How are you?
Random dude #2: Ehh, cómo te llamas...
Spanish guy: Hola, amigo. ¿Es buena la comida?
Helpless American: ...Cómo te llamas???