Here's what rhymes with shack.
sac sack hack fac alk back lack pack stack nach rack slack jack tack knack lac smack snack flak mac mak tak whack wrack yak flack mack wack yack black attack track crack plaque aback quack shellac clack claque highjack unpack zodiac ipecac repack anorak thumbtack skyjack elegiac maniac hardtack haversack gunnysack razorback rickrack mudpack cardiac paperback almanac piggyback amnesiac pickaback demoniac lumberjack stickleback insomniac applejack crackerjack steeplejack counterattack quarterback nymphomaniac megalomaniac Words that almost rhyme with shack
ag hag fag sag zag shag bag flag lag tag rag slag gag stag wag mag nag snag dag swag drag brag crag dishrag fleabag scrag washrag blag toerag nosebag wigwag sleazebag chinwag saddlebag scalawag scallywag lollygag lallygag ask thank sank shank anc hanc hank ankh bank task rank tank flank mask flask frank shrank cask franc masque bask dank lank talc spank stank yank swank basque blank drank crank plank prank clank unmask outrank embank riverbank antitank databank charabanc pointblank