Getting “Boomed” is both self hate and physical emotional pain. Both can cause a person to feel ashamed, helpless, and hopeless. Getting “Boomed” can usually be a one-off event that can be dealt with by seeking medical care, therapy, and other forms of help. But on the other hand can also be an ongoing struggle that can be more difficult to overcome as it involves a person's internal dialogue and beliefs about themselves.
In poker analysis the experience of posting a hand history at an online forum and getting ripped to shreds by a lengthy response by poker theoretician IABoomer.
In a game of basketball when a defender attempts to stop a dunk and fails. This often occurs to an unaware defender or to a defender that finds out at the last moment and can do nothing to stop what is about to occur. Embarrassment is what the defender is left with afterwards.