Definition of "Throwaway" :

noun: words spoken in a casual way with conscious under-emphasis

noun: an advertisement (usually printed on a page or in a leaflet) intended for wide distribution

noun: (sometimes offensive) a homeless boy who has been abandoned and roams the streets

adjective: intended to be thrown away after use

"Throwaway diapers."

adjective: thrown away

"Throwaway children living on the streets."