From The Collaborative International Dictionary of English v.0.48:
Cock \Cock\ (k[o^]k), v. t. [imp. & p. p. Cocked (k[o^]kt); p.
pr. & vb. n. Cocking.] [Cf. Gael. coc to cock.]
1. To set erect; to turn up.
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Our Lightfoot barks, and cocks his ears. --Gay.
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Dick would cock his nose in scorn. --Swift.
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2. To shape, as a hat, by turning up the brim.
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3. To set on one side in a pert or jaunty manner.
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They cocked their hats in each other's faces.
--Macaulay.
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4. To turn (the eye) obliquely and partially close its lid,
as an expression of derision or insinuation.
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Cocked hat.
(a) A hat with large, stiff flaps turned up to a peaked
crown, thus making its form triangular; -- called also
three-cornered hat.
(b) A game similar to ninepins, except that only three
pins are used, which are set up at the angles of a
triangle.
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