Threw away is the past tense of throw away. It means discarding something as trash or wasting a chance or resource.
No man ever threw away life while it was worth keeping. David Hume
Humans were so stupid. They had something so precious, and they barely safeguarded it at all. They threw away their lives for money, for packets of powder, for a stranger's charming smile. Cassandra Clare
I've not done any of this for superstardom, quite the opposite. I threw away the rock star mantle. And for that, there's resentment too: ‘How dare he, how dare he.' John Lydon
Well, it's not my fault that you can't manage your money.' You threw away my purse.' I thought it was an enemy. Obert Skye
I think feminism's a bit misinterpreted. It was about casting off all gender roles. There's nothing wrong with a man holding a door open for a girl. But we sort of threw away all the rules, so everybody's confused. And dating becomes a sloppy, uncomfortable, unpleasant thing. Zosia Mamet
I TOOK THE PIECES YOU THREW AWAY AND PUT THEM TOGATHER [sic] BY NIGHT AND DAY WASHED BY RAIN DRIED BY SUN A MILLION PIECES ALL IN ONE. Howard Finster