phrasal
1. : to ornament a ship while in port by hoisting national ensigns at the mastheads and running a line of signal flags and pennants from bow to stern by way of the mastheads in honor of a special occasion (as a national holiday) or as a courtesy to a foreign nation or a distinguished person
2. : to ornament a ship in the United States Navy by hoisting national ensigns at the mastheads, the ship's largest ensign at the flagstaff, and the jack at the jackstaff