gunk /gungk/ (informal)

1. Any unpleasant, dirty, sticky material
2. Any semi-solid, usu valueless, residue from a chemical process

• popinjay
• popinjays
• popish
• popishly
• popjoy
• popjoyed
• popjoying
• popjoys
• pop-lacrosse
• poplar
• poplars
• poplin
• poplinette
• poplinettes
• poplins
• popliteal
• poplitic
• pop music
• pop off
• pop one's clogs
• popover
• popovers
• poppa
• poppadum
• poppadums