What does mean the following Mexican expression: "Está papas"?

"Señorita" is another way to call a waitress at a restaurant in Mexico.

What does mean the following Mexican expression: "Me vale un cacahuate"?

I'm very interested in what you're saying.

If someone says "¿Qué onda?" to you, what does that mean?

What's the meaning of the following saying: "Camarón que se duerme se lo lleva la corriente"?

It's a warning about the risks of the lack of attention and pasitivity of action.

It means that you always must to be happy no matter what happens and you must let yourself go.