Here's what rhymes with knowwhat.
                        
                        
                    
                                what  but  cut  shut  hut  butt  gut  nut  nought  mot  somewhat  strut  coconut  undercut  Words that almost rhyme with knowwhat
such  much  judge  sub  touch  cup  mud  bud  rub  tub  hub  pub  sup  budge  cub  thud  blood  club  flood  clutch  grudge  shrub  sludge  stud  grub  stub  scrub  insomuch  just  must  dust  rushed  touched  cult  duct  hunt  bust  lust  shunt  tucked  hushed  puffed  rust  sucked  cupped  ducked  gust  tuft  front  trust  adult  thrust  adjust  corrupt  crushed  jumped  robust  blunt  brushed  crust  flushed  occult  stuffed  blushed  clutched  dumped  plucked  pumped  punched  brunt  bumped  erupt  grunt  hunched  lumped  pulsed  stunt  result  amongst  insult  unjust  abrupt  interrupt  untouched  affront  deduct  entrust  slumped  conduct  discussed  confront  consult  disgust  instruct  disrupt  mistrust  repulsed  aqueduct  defunct  engulfed  construct  distrust  antitrust  obstruct  convulsed  waterfront  reconstruct