Mammoth Uncensored Word List:
230 words ending with ck, 7 letters long

airlock airsick amtrack armlock bannock barrack bawcock bedrock bedtick befleck bellock bestick bestuck bibcock bittock bollock bonnock bullock bummock burdock buttock buyback calpack candock caprock carjack carlock carrack carsick cassock castock conteck cossack cowlick cromack custock cutback daddock daglock dawcock daysack defrock derrick destock dieback dogsick dorneck dornick dornock drydock dunnock earlock earpick elflock fatback fetlock finback finnack finnock flyback fossick futtock gallock gammock garvock genlock geoduck gimmick gorcock gunlock gweduck haddock hammock hassock hatrack hattock hawbuck haycock hayrack hayrick hemlock henpeck heyduck hillock hogback hommock hoolock hopsack hordock hummock icepack icepick illluck jannock jonnock jumbuck kebbock kebbuck keylock killick killock lassock lavrock layback laylock limbeck lustick maddock maffick mammock manjack manpack mattock meacock mimmick minnick minnock miskick misluck mudpack mudrock mullock mummock niblick niddick nitpick nudnick nutpick oarlock oomiack outback outkick outrock outwick paddock padlock pannick parrock patrick payback peacock pellack pellock petcock piddock pillock pinnock pollack pollock potluck prepack prerock puddock putlock puttock rampick ransack ratpack reblock recheck redback redneck restack restick restock retrack rimrock roebuck rollick rollock rowlock ruddock rullock runback ryepeck sawbuck schlock schmeck schmick schmock schmuck schtick schtuck seacock seasick setback shylock sillock sixpack skyjack sourock sowback stomack subtack sunback sundeck tarrock tieback tietack tintack tomback topkick towsack tripack tussock tussuck unblock uncheck unfrock unslick unsneck unstack unstick unstock unstuck untrack upchuck waesuck warlock wayback wazzock wedlock wetback wetdock windock winnock wryneck zaddick zambuck ziplock