Here's what rhymes with smullen.
sullen semicolon Words that almost rhyme with smullen
oven mutton anon muslin muffin mullion nubbin sudden button cousin dozen onion summon emulsion sultan fuckin yeomen gulden coven dudgeon toughen piton roughen scullion scutcheon unman dubbin kuchen someone suction dungeon luncheon sunken shrunken unction avulsion globin irruption bludgeon escutcheon glutton gunman impulsion unbutton bunion lumpen biathlon function discussion corruption induction junction compulsion drunken eruption expulsion percussion repulsion seduction tungsten androgen concussion convulsion perdition revulsion exciton gumption dustpan decagon dustman stuntman grunion assumption reduction combustion conduction deduction disruption injunction interruption abduction propulsion huntsman subduction ragamuffin caparison production consumption destruction instruction conjunction dysfunction obstruction resumption disjunction malfunction compunction repercussion bellybutton construction introduction presumption transduction liposuction reproduction overproduction reconstruction deconstruction reintroduction misconstruction underproduction