An emotional feeling you get moments after a song is turned off or changed before an amazing solo.
Dude my ipod died right before the guitar solo in sweet child o mine and i got audio blueballs!
The feeling one experiences when a song ends on a non resolving chord and leaves the listener's ear wanting resolution (the root of the key usually). Also when a song is cut or stopped before the chorus or other major event like a memorable solo such as in Pink Floyd's Comfortably Numb.
Dude, the ending of that song left me hanging. It was almost an eargasm but left me with a serious case of audio blueballs.