fess up

== English == === Alternative forms === 'fess up (with preceding apostrophe) === Etymology === Clipping of confess up. === Pronunciation === === Verb === fess up (third-person singular simple present fesses up, present participle fessing up, simple past and past participle fessed up) (intransitive, colloquial) To confess to something; to admit something. Synonym: own up ==== Translations ====