When passing a joint around, someone takes a few more puffs than would be considered polite thus depriving others of herb....

could also be used in others scenearios when someone hogs something for too long.

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)