One of the feathers on an arrow that is placed at right angles to the nock on the bow, usually having a different color than the other feathers so that it is easily identified.

Feather on an arrow. / Tailfeather of a cock.

(Cockney rhyming slang) The sum of ten pounds sterling.

A dessert consisting of a sphere of shredded coconut and other ingredients covered in powdered sugar.

plural of coconut snowball

plural of cock-and-hen club

(historical) A casual gathering of men and women for singing, dancing, etc.

(humorous) That explains everything (in response to a satisfactory explanation).

(geometry) The bicorn (type of curve).

plural of cocked hat curve