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