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