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shell out (an amount of money)
to spend a certain amount of money. I'm not going to shell out $400 for that! Come on. You owe me. Shell out!
Pay, hand over, as in We had to shell out $1,000 for auto repairs. This expression transfers taking a seed such as a pea or nut out of its pod or shell to taking money out of one's pocket. [Colloquial; c. 1800]
To pay some amount of money, often reluctantly: I had to shell out $500 on car repairs. We had to shell the full amount of tuition out even though many of the classes had been canceled.