I also veer between not caring and then thinking, 'ugh'.    From Wordnik.com.  [My Body, No Wonderland] Reference

Between the gruesome clickity click up the hill, and the 'ugh' as you head down -- well, you probably remember.    From Wordnik.com.  [Steve Rosenbaum: Confessions Of A Roller-Coaster Addict] Reference

I've seen it many times now ... all I can do is go 'ugh'.    From Wordnik.com.  [NewsBusters.org - Exposing Liberal Media Bias] Reference

Mike Smith: I'm going from 'ugh' to 'sheesh' and possibly 'duh'.    From Wordnik.com.  [Crikey » Canberra Calling] Reference

She has a way of protruding her under lip-ugh! do you know you are terribly slender?.    From Wordnik.com.  [The French Immortals Series — Complete] Reference