fess up

Fess up is defined as to confess to something, take responsibility for something or tell the truth about something.

(verb)

  1. An example of fess up is when you tell your friend how much you lost in Vegas.
  2. An example of fess up is when you admit to your friend you lost the sweater she lent you.

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See fess up in Webster's New World College Dictionary

or 'fess up

Informal to admit or acknowledge something; confess

Origin: aphetic for confess

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