Here's what rhymes with festc.
                        
                        
                    
                                Words that almost rhyme with festc
desk  sec  elk  shek  ec  ek  haec  heck  lc  check  neck  deck  wreck  cheque  tech  msec  nec  peck  spec  speck  beck  dec  rec  fleck  whelk  lech  burlesque  trek  exec  hatcheck  grotesque  arabesque  statuesque  recheck  bedeck  kopeck  spellcheck  yarmelke  discotheque  bottleneck  turtleneck  quarterdeck