Balk line (Billiards), a line across a billiard table near one end, marking a limit within which the cue balls are placed in beginning a game; also, a line around the table, parallel to the sides, used in playing a particular game, called the balk line game.
Balk, v. t. [imp. & p. p. Balked (bkt); p. pr. & vb. n. Balking.] [From Balk a beam; orig. to put a balk or beam in one's way, in order to stop or hinder. Cf., for sense 2, AS. on balcan legan to lay in heaps.]