suru verb (special), transitive verb
toss away; throw out; chuck
Casual, onomatopoeic verb used mainly in children's language or informal adult speech. Conveys a light, careless discarding motion.
使わないおもちゃをポイしちゃった。
I tossed away the toys I don't use.
ゴミをポイするのはやめ
Stop chucking your trash around.