Nel

Nel (NELL) is a workhorse of Chilango slang. It means "no" and it is usually followed by pastel (pass-TELL, lit. cake). The cake part has no particular interpretation but it rhymes. This expression is informal yet colorful.

Example:

Mamá: ¿No te vas a poner smoking para los quince años de Lupita?
Hijo: Nel pastel. Me voy como ando.

Mom: Aren't you going to were a tuxedo for Lupita's quinceañera?
Son: Nope. I'll just go like this.

Nel pastel shows Chilangos' taste for rhyming sound bites.