Here's what rhymes with slay.
                        
                        
                    
                                re  lay  ray  ae  ay  fray  yea  ley  rei  sleigh  lei  rea  flay  roue  they  may  day  way  say  pay  play  stay  j  array  bay  clay  gay  gray  grey  k  pray  che  hay  nay  prey  spray  weigh  stray  sway  tray  fay  fe  valet  allay  dey  fillet  hey  sei  whey  drei  fj  jay  kc  payee  rj  tae  tre  wei  zwei  bey  bray  dray  neigh  brae  cay  fey  filet  shay  splay  hooray  trey  aurae  hurray  spay  away  delay  survey  essay  obey  okay  ballet  repay  astray  oj  defray  ij  ok  overlay  bj  bk  dossier  saute  tj  soiree  souffle  belay  moray  sachet  sorbet  reweigh  aweigh  today  display  decay  everyday  holiday  betray  cafe  dismay  halfway  bouquet  cliche  disarray  faraway  passe  francais  puree  replay  alleyway  crochet  croquet  parquet  risque  inveigh  throwaway  airplay  byplay  nisei  prepay  purvey  soubriquet  toupee  flyaway  noway  overpay  overplay  sickbay  urethrae  briquet  caesurae  layaway  outplay  outstay  umbrae  bobsleigh  copay  misplay  respray  anyway  convey  portray  runaway  vertebrae  attache  disobey  lamellae  papillae  sequelae  cabaret  emigre  gangway  naturae  toothache  underlay  fistulae  lingerie  maxillae  sobriquet  wordplay  caraway  fibulae  giveaway  hideaway  ricochet  patellae  pleurae  resurvey  stingray  stowaway  overstay  medullae  uvulae  foldaway  tearaway  yesterday  formulae  interplay  underway  naivete  passageway  protege  waterway  matinee  microarray  nebulae  societe  breakaway  getaway  scapulae  straightaway  workaday  carriageway  castaway  underplay  macrame  roundelay  underpay  copulae  walkaway  cabriolet  salmonellae  takeaway  cybercafe  penumbrae  communique  tarantulae  trabeculae  caravanserais  companionway