verb. (American).To SHUNT (q.v.); to avoid; to place on one side; to discontinue.
1889. Detroit Free Press, 12 Jan. Then he said to Beverly, who had been SIDETRACKED: Now Ill be Tucker for a while, and you can be Tuckers brother.
1892. A. C. GUNTER, Miss Dividends, vi. Call me Buck! SIDE-TRACK the Mr. Powers!