Can you feature that!?

[Rudolph C Troike]

I agree with Robert Kelly's interpretation; the quoted DARE definition (I
didn't check it myself) is too spare to derive the sense of disapproving
incredulity implied. Interesting how an important implication might be lost
in a dictionary definition.
        I am certainly familiar with the usage from south Texas, but I
can't identify any particular source, though it sounds a bit old fashioned
and primarily female.

        Rudy