Here's what rhymes with offgasing.
                        
                        
                    
                                gassing  passing  harassing  massing  classing  surpassing  amassing  Words that almost rhyme with offgasing
caching  calving  cashing  having  laughing  flashing  crashing  dashing  staffing  clashing  lashing  smashing  thrashing  slashing  bashing  gnashing  graphing  halving  hashing  splashing  photographing  casting  catching  scanning  canning  gasping  capping  gagging  dancing  hanging  lacking  lasting  mapping  matching  packing  backing  cracking  fasting  grasping  tapping  camping  chatting  glancing  hatching  masking  scratching  spanning  taxing  wrapping  banging  banning  batting  clapping  clasping  damning  fanning  flapping  grabbing  lagging  nagging  padding  patting  sagging  slamming  slapping  snapping  snatching  stabbing  stacking  tanning  basking  cladding  clanging  flagging  hacking  jamming  lapping  manning  matting  patching  racking  rapping  rasping  sacking  smacking  tacking  tagging  wagging  waxing  bagging  cramming  damming  haranguing  lapsing  napping  paling  panning  ramming  planning  standing  banking  landing  attacking  financing  granting  ranking  attaching  dragging  tracking  chanting  damping  grafting  handing  panting  rattling  stamping  thanking  trapping  banding  blasting  clamping  collapsing  crackling  flanking  grappling  slanting  tackling  bragging  clanking  cramping  planing  prancing  ranching  recasting  sapling  spanking  strapping  handling  sampling  advancing  commanding  everlasting  planting  adapting  branching  drafting  enhancing  overlapping  reacting  exacting  overhanging  relaxing  branding  combating  enacting  rambling  detaching  dispatching  planking  relapsing  straddling  tramping  unflagging  unpacking  outstanding  demanding  expanding  attracting  contrasting  enchanting  trampling  impacting  refracting  supplanting  understanding  interacting  extracting  subtracting  abstracting  counteracting  distracting  withstanding  transacting  notwithstanding  transplanting  subcontracting  misunderstanding