pellet drum (as a childrens' toy)

play, amuse oneself, enjoy oneself / spend one's time idle, do nothing / for an item not to be in use, be spare or idle

child

to hit; to strike; to beat; to paddle (to spank with a paddle) / to criticize; to verbally abuse or attack / to play (drums); to beat / to clap (hands) / (programming) to call (an API)

to use up money

child's naive mind, child's juvenile mind

plural of 子供: children

to slap, to strike, to spank

beat someone into shape

(offensive, Internet slang) a man whose age is greater than about thirty or forty who lives in one's child room and with one's parent(s).