A new dance when you raise your hand over your head and lift your leg

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)

Typical black people dance move that has spread over the last few years.

It involves a person that makes a combination of dance moves and then ending them abruptly by raising one of their hands and one of their legs and imitating throwing a punch down at something. Sometimes both hands are used.