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