I was wondering how you could use talk about with friend to show
in a friend.
For example, to be critical you could say: Some friend he is!
And to be flattering you maybe ... not sure... might say: Quite a friend he is
I would like to see an example for each case using talk about friend. I noticed that talk about could be used with adjectives as well as nouns.
2 informal - used to emphasize the size, amount, or extent of something
Talk about rain! I've never seen it rain like this in my entire life!
Talk about having a bad day. I had the worst day ever!
Talk about short. She's only four feet tall!
Merriam Webster's Advanced Learner's Dictionary
A positive articulation:Talk about best friends! Dylan has never failed me. He's always been there
A negative articulation:Talk about friends! Jerry told Dad I was smoking again; such a fink.