A Spendthrift (n.) treats some of his friends lavishly with the money he owes other friends.
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The Spendthrift (n.) is is all spend and no thrift.
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A Spendthrift (n.) considers it a disgrace to die rich.
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A Spendthrift (n.) is the one that two can live as cheaply as.
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A Spendthrift (n.) is the only person who cannot economize even when he is broke.