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