Here's what rhymes with buttercask.
cask task mask masque bask basque flask unmask Words that almost rhyme with buttercask
back attack bank lack rank tank thank crack pack sank nach rack sac sack crank hack jack tack aback fac knack lac shack shank dank hanc lank mac mak quack tak talc whack clack clank hank wrack yak yank claque mack wack yack black track blank drank flank stack frank plaque slack paperback plank shrank franc smack snack flak prank unpack spank stank ipecac swank databank flack anorak shellac antitank lumberjack piggyback outrank repack applejack charabanc embank rickrack pickaback highjack mudpack skyjack cardiac almanac elegiac maniac riverbank zodiac hardtack pointblank crackerjack gunnysack razorback thumbtack counterattack quarterback demoniac haversack stickleback amnesiac steeplejack insomniac nymphomaniac megalomaniac