- An example of fess up is when you tell your friend how much you lost in Vegas.
- An example of fess up is when you admit to your friend you lost the sweater she lent you.
or 'fess up
Origin of fess upaphetic for confess
(third-person singular simple present fesses up, present participle fessing up, simple past and past participle fessed up)
(third-person singular simple present 'fesses up, present participle 'fessing up, simple past and past participle 'fessed up)
- Alternative form of fess up.