Definition of "used up" [used up]

• Simple past tense and past participle of use up. (verb)
• Worn out; depleted; exhausted; having nothing left; useless, due to the expenditure of all resources. (adjective)

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• "Of course total population growth is part of the problem: all you need to do is see those hockey-stick-like graphs on page xv to know that one of the big reasons that exponentially more of everything trees, minerals, fresh water, fisheries, etc. has been used up in the last fifty years is because there are exponentially more of us."
• "Ballfields, basketball courts, and the crater of an old and unfilled swimming pool also used up the open space until the forest took over again, and shortly thereafter, the mountains began their skyward inclination."
• "From the water, Belle Morte reminded one of a sleepy old miser, perched up ahead on either side of the stream, its gray stone houses curvy and slumped as if they had used up all their energy just being built at all."