Chances are you first started calling dibs back when you were a kid on the playground. Coincidentally, the playground is exactly where the phrase is believed to have menu
A quorum is the minimum number of people who must be present to pass a law, make a judgment, or conduct business. Quorum requirements typically are found in a court, legislative assembly, or corporation (where those attending might be directors or stockholders).
quorum call A procedure used in both houses of Congress to bring to the floor the number of Members of the House or Senate who must be present for it to conduct its business. In the Senate, a Senator who has the floor can force a quorum call at almost any time by suggesting the absence of quorum.