It might look special but it's really 'no big whoop'. [='no big deal'; it's not very important]
“She can cook a five-course meal in an hour.” “'Whoop-de-do'.” [=so what?; who cares?]
“Their team is going to the play-offs.” “'Big whoop'.” [='big deal']
(..) No, thanks. Meanwhile, uptown, Charlotte wondered when relationships had gotten so complicated. She yearned for the time when dinner was followed by dessert, not lubricant. - Ooh, whoops! Oh, my. I don't want to. Or maybe I do. I don't know what I want, but- - I've seen this one. - I can't. (..)2005 In Her Shoes