The Collaborative International Dictionary of English v.0.48:

Tirl \Tirl\, v. i. [Cf. Twirl, Thirl.] [Scot. & Prov. Eng.]
   1. To quiver; to vibrate; to veer about.
      [Webster 1913 Suppl.]

   2. To make a ratting or clattering sound by twirling or
      shaking; as, to tirl at the pin, or latch, of a door.
      [Webster 1913 Suppl.]