pay as you go

pay as you go idiom
Pay for purchases immediately instead of deferring payment. For example, Ruth and Bob had no credit cards; they believed in paying as you go. [First half of 1800s]

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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