Commodore Robert Wesley: Our complements to the M-5 unit ... and regards to Captain Dunsel. Wesley out.
(Chekov winces; he and Sulu exchange a look)
Dr. McCoy: Dunsel? Who the blazes is Captain Dunsel? What does it mean, Jim? ... Spock? ... What does it mean?
Spock: Dunsel, doctor, is a term used by midshipmen at Starfleet Academy. It refers to a part which serves no useful purpose.