Here's what rhymes with pcoo.
                        
                        
                    
                                coup  qu  ku  coo  cou  gu  goo  to  who  you  do  two  new  too  due  knew  du  grew  que  u  crew  q  shoe  zu  clue  cue  dew  glue  lieu  queue  shew  su  sue  tu  vous  chew  cu  deux  fu  lu  rue  zoo  bu  hu  ju  jus  loo  mu  nu  peu  piu  pu  seu  shu  sou  vu  woo  yew  yu  beaucoup  boo  chou  chu  doo  ewe  feu  ru  shou  thu  tue  vou  wou  wu  clew  moo  pooh  poo  shoo  gnu  roux  thew  whew  achoo  through  few  true  view  blue  drew  pursue  threw  blew  flew  screw  anew  canoe  hue  accrue  flue  slew  stew  taboo  adieu  ado  brew  flu  jusqu  pew  skew  tattoo  thru  fue  hew  mieux  shrew  tzu  vue  mew  redo  zebu  kazoo  peekaboo  slue  phew  booboo  into  review  bamboo  renew  undue  debut  ensue  undo  eschew  outdo  sprue  vnto  askew  outgrew  strew  ballyhoo  halloo  spew  valuer  bugaboo  foreknew  buckaroo  wazoo  regrew  atishoo  avenue  retinue  subdue  untrue  caribou  overdue  kangaroo  revue  shampoo  sinew  imbue  overdo  cockatoo  honeydew  endue  indue  bestrew  muumuu  overshoe  prevue  superglue  overgrew  interview  revenue  hitherto  overview  residue  withdrew  rendezvous  construe  overthrew  barbecue  barbeque  fondue  marabou  overflew  overdrew  hullabaloo  misconstrue