When a person is really angry and they decide to charge like a rhino head down toward the source of their anger.

Origin: In the Keri Hilson song Knock You Down KanYe West says "Now I'm mad real mad Joe Jackson"

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)