a children's game in which a number of children bend down and another child jumps over them one at a time

to improve your position by going past other people quickly or by missing out some stages

They've leapfrogged from third to first place. 他们已经从第三位上升到了第一位。

She leapfrogged several older colleagues to get the manager's job. 她越过几位年长的同事升到了经理的职位。