白扔 meaning in English

spend without proper return; waste

It ' s a waste of money betting on that old nag
把赌金压在那匹老马上就是白扔钱
Don ' t waste you money on that new powder , it ' s no good
别把钱白扔到那种新型肥皂粉上，那没有用。
I admonished her and the little girl to try to keep the chickens off it , and i left sure i had just thrown away a new piano
我告诫老妇人和小女孩不要让鸡飞上来，然后我就离开了? ?就当我白扔了一架新钢琴。