Streak \Streak\, v. t. [imp. & p. p. {Streaked}; p. pr. & vb. n. {Streaking}.] 1. To form streaks or stripes in or on; to stripe; to variegate with lines of a different color, or of different colors. A mule . . . streaked and dappled with white and black. --Sandys. Now streaked and glowing with the morning red. --Prior. 2. With it as an object: To run swiftly. [Colloq.]