For example:
- I don't know who Tiger Woods is.
- For real?
and
- I don't know who Tiger Woods is.
- Really?
I don't see any difference in this case, but are there some specific cases when these exclamations are different?
For example:
and
I don't see any difference in this case, but are there some specific cases when these exclamations are different?
There's no difference in meaning - it's just that "For real?" is still somewhat "slangier".
Note that it's easy to see "Really?" as a shortened version of grammatically sound constructions such as "Is that really true?", whereas to me at least there's no obviously valid construction underpinning "For real?".