DCHP-1 Online
backchecking 
n. in hockey or lacrosse, the practice whereby forwards, having lost the puck or ball to the opposition, attempt to retrieve it by harrying the carrier as he moves towards their goal.
- 1955 Heavy backchecking on both sides held down the scoring plays. . . .
- 1964 . . . they control the puck so much that backchecking is an absolute contradiction.
- 1955 Heavy backchecking on both sides held down the scoring plays. . . .