kick in the balls

Etymology
See.

Noun

 * 1)  A big setback or disappointment.
 * 2) * Jan 23 2009, Wokingham Times - Local Rugby Round-Up
 * "Losing to Wallingford was a kick in the balls for us so we know we can't take any team lightly", said player/coach and lock Ben Hughes
 * 1) * April 16 2010, Scottish Daily Record - If you laugh at people for having a go on reality shows then you're an idiot, blasts Barry Hyde of The Futureheads
 * "It's still a kick in the balls whether you've made the label drop you or they reject you."
 * "It's still a kick in the balls whether you've made the label drop you or they reject you."