[UN-1 8.] Of a hat: Not cocked or turned up.
1721. Ramsay, Morning Interview, 13. The sons of Bacchus stagger home to rest, With tatterd wigs, foul shoes, and uncockd hats.
1751. Johnson, Rambler, No. 109, ¶ 6. With my hair unpowdered, and my hat uncocked.
1785. Grose, Dict. Vulgar T., Zouch, or Slouch, a slouched hat; a hat with its brims let down, or uncocked.