When a vehicle keeps blocking you from advancing on your way to your destination.

The Most common is to go slow while your behind him/her, or they can be assholes and just keep cutting you off when your trying to pass them

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)