ˈspent adjective
Etymology: Middle English, from past participle of spenden to spend — more at spend
1.
a. : used up : consumed, expended
the smell of spent powder — R.H.Newman
the air, breathed many times and spent — Edna S. V. Millay
b. : exhausted of active or effective quality or components
spent fuller's earth
spent tanbark
spent grain
2. : drained of energy or vitality : worn out : exhausted
saw him come creeping home at dawn, panting and spent — Pearl Buck
two spent old women — Edith Wharton
3. : exhausted of spawn or sperm — used especially of fishes or of insects that have laid all their eggs; compare ripe
4. of an artificial fly : tied to imitate the drooping wings of a natural insect that has dropped its eggs or is exhausted