could be written on the back of a postage stamp

English

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Alternative forms

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Etymology

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Due to the very small size of a postage stamp.

Phrase

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could be written on the back of a postage stamp

  1. (figuratively) Something that is very small or limited.
    • 2008, Sam Baker, Deadly Beautiful:
      Something classical that Annie couldn't immediately place, which was hardly surprising given that what Annie knew about symphonies could be written on the back of a postage stamp.