A
sarcastic rejoinder feigning gentle surprise at another person's naive, glib, obvious, half-
baked or banal observation. (abbrev. of "Do you really think so?") cf.
DUH
Person #
1: "Gee... outfitting all my bridesmaids in Vera
Wang and Manolo Blahniks might
eat into my bridal budget..." Person #2: "Ya thank??"