"Saber de qué lado masca la iguana"

"Saber de qué lado masca la iguana"
 

Hello all!

Can someone help me with this idiom? I heard it from a Mexican friend of mine, but I don't really understand what he meant. The complete sentence he used was something like:

"Yo si sé de qué lado masca la iguana"

Any idea what it means?

Thanks in advance,
Lexa.

Welcome to the forums, Lexa. :)

"Saber de qué lado masca la iguana" is a colloquial way to say that someone is well informed about something.

He could have said, "yo sí sé muy bien cómo son las cosas".

Welcome to you, Lexa, and hope you enjoy the forums as much as I do. Check out the Idioms section, and add yours to it if you like!

"Saber de qué lado masca la iguana"
 

Gracias chicos!