[UN-1 8.] Of a hat: Not cocked or turned up.

1

1721.  Ramsay, Morning Interview, 13. The sons of Bacchus stagger home to rest, With tatter’d wigs, foul shoes, and uncock’d hats.

2

1751.  Johnson, Rambler, No. 109, ¶ 6. With … my hair unpowdered, and my hat uncocked.

3

1785.  Grose, Dict. Vulgar T., Zouch, or Slouch, a slouched hat; a hat with its brims let down, or uncocked.

4