メンコ

noun

menko; card-flipping game

A traditional Japanese children's game played with thick circular or rectangular cards. Players slap their card onto the ground to flip over an opponent's card.

• 昔むかし、よく友とも達だちとメンコをして遊あそんだ。

  I used to play menko with my friends a lot when I was young.

• このメンコは厚あつくて、なかなかひっくり返かえらない。

  This menko card is thick and hard to flip over.