1. to throw at; to fling at; to hurl at; to throw (someone) down
そのまま一気に雪を握って相手へと投げつける。Then, in one quick motion, I grab a handful of snow and hurl it at my opponent.
2. to hurl (abuse, insults, etc.) at; to use (rough language) with (someone)
嫌な言葉を投げつけられたら、誰だって心が痛い。Anyone would be hurt if nasty words were hurled at them.