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