A very loud bassbosted noise, music, or sound that is so loud it hurts to listen to

When listing to Justin Beiber

When you hear someone who is so annoying that the sound of their voice hurts worse than being penetrated in the ear.

Forcefully shoving unwanted information into someones ear hole.

Definition according to Ron White's comedy album "You Cant Fix Stupid."

whenever you are talking on the phone with someone and all of a sudden you hear a noise or bad feedback from the other line.
Or even if the person you're talking to you has an unpleasant voice or singing voice.

An unexpectedly loud noise produced with the intent of surprising an unaware audience or with the intent of humor. A common technique used in YouTube Poop. See article: YouTube Poop. This tactic is a personal favorite of YouTube Pooper Imaperson, exhibited in his video: GENIE HAS BIPOLAR DISORDER.

When your boss calls and screams at you for problems that you did not create. Usually your boss is crazy and doesn't know how to handle her own life. She lashes out at people in such harsh tones and loud screams it hurts your ears.