“Thanks for that”
I had always believed that saying “thanks for that” without a following noun or phrase was intended as something of a put down.
I’m not referring to its use in the form “Thanks for that information” or “Thanks for that wine you sent”, but to the situation(s) where someone had said something inane or pointless, or had told an uninteresting story or a somewhat obscure joke.
One would then say “Thanks for that” followed by the person’s name.
Tim: “This one time, I broke a pen and then fixed it again.”
Me: “Thanks for that, Tim.”
But now the phrase seems to be in general use with no irony attached.
Instead of just saying “Thank you” some people are now saying “Thanks for that” with no further qualification.