1. fack - Noun
2. fack - Verb
fack (plural facks)
(UK dialectal) One of the four stomachs of a ruminating animal; rumen; paunch.
fack (third-person singular simple present facks, present participle facking, simple past and past participle facked)
(UK, Cockney, vulgar) Pronunciation spelling of fuck.
The fack can't be no longer disgised that a Krysis is onto us. Artemus Ward