smiles, frowns, and upside downs

smiles, frowns, and upside downs - (informal) The accidental deviations from the uniform alignment of envelopes on a facer-canceler or letter sorting machine. When the back of the envelope faces the machine or operator, it is either a smile (flap makes a V) or a frown (flap is inverted); when the address side faces the machine but is inverted, the envelope is called an upside down.

Glossary of postal terms. 2014.

Look at other dictionaries:

  • upside down — (See smiles, frowns, and upside downs) …   Glossary of postal terms

  • frown — (informal) (See smiles, frowns, and upside downs) …   Glossary of postal terms

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