Basically means, "you heard me" or "do you understand?". It can be used as a question or an exclamation towards someone. It's common in New York around the Bronx and Mount Vernon.

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)