I. ˈthrō-ə-ˌwā noun
Date: 1903
1. : one that is or is designed to be thrown away: as
a. : a free handbill or circular
b. : a line of dialogue (as in a play) de-emphasized by casual delivery ; especially : a joke or witticism delivered casually
2. : something made or done without care or interest
3. : a child who has been forced to leave home or who has run away from indifferent or hostile parents
II. adjective
Date: 1928
1. : designed to be thrown away : disposable
throwaway containers
2. : written or spoken (as in a play) in a low-key or unemphatic manner
throwaway lines
3. : nonchalant , casual
4. : marked by a tendency to discard things : overly wasteful
a throwaway society