Rats!, 8 letters
Give me a break!, 8 letters
Honestly!, 8 letters
Yeah, right!, 8 letters
Exclamation of exasperation, 8 letters
Impatient plaint, 8 letters
Aw, sugar!, 5 letters
Drat!, 5 letters
Aw, nuts, 6 letters
What an unfortunate situation, 6 letters
Roy Orbison chart-topper, 13 letters
See 20A, 13 letters
That is SO lame!, 10 letters