When a law enforcement officer is transporting a total A-hole prisoner in the back of his/her patrol car and they hit the brakes suddenly, causing the prisoner to smack his face on the cage/screen.

v. collectively or individually finding someone/something to blame for a problem, as opposed to brainstorming which connotes finding solutions to a problem

n. the act of finding someone/something to blame for a problem

(from a TV ad for HD television)