feck /fɛk/noun 2verb 2forms 3 noun2 •Effect, value; vigor.some of which have earned a small academic following for their technical feck and for a pathos that was somehow both surreally abstract and CNS-rendingly melodramatic at the same time. — 1996 •(Scotland) The greater or larger part.I hae been a devil the feck o' my life — 1786 verb2 •(Ireland, informal) Used in place of fuck.As Charlie Murphy put it to me, 'When the bishops called down fire and brimstone not a man stirred but when Joe Christle fecked off half the shagging IRA followed him!' — 2002 •(Ireland, slang) To steal. formsfecked · fecking · fecks