Interested in Language
Please, dear teachers and friends...
Could you shed some light on this?
Let's talk Politics
Let's talk about Politics.
I can't tell 'em apart.
"Let's talk politics," is a shortened, idiomatic way of saying, "Let's talk about politics."
Let's talk Russia.
Let's talk Mr Homer. (a proper name)
Let's talk it.
Let's talk this professor.
To be honest, such sentences sounds odd to me. We usually talk about something or someone.
I thought there was a little difference between them:
Let's talk Russia. (A discussion suitable for specialists)
Let's talk about Lidia. ( informal talking).
but I guess I was wrong.