D defs.my
Entry 1 sense Webster, 1913

Leapfrog

/lēp'-frôgˌ/ · Leap·frog · IPA /ˈliːpfɹɑɡ/
01 n. A play among boys, in which one stoops down and another leaps over him by placing his hands on the shoulders of the former.
  1. 1.
    A play among boys, in which one stoops down and another leaps over him by placing his hands on the shoulders of the former.