hubble-bubble /hubˈl-bubˈl/

1. A bubbling sound
2. Tattle
3. Confusion
4. A crude kind of hookah

• knock the stuffing out of
• knock together
• knock under
• knock up
• knock-up
• knock-ups
• knock wood
• knockwurst
• knockwursts
• knoll
• knolls
• knop
• knops
• knosp
• knosps
• knot
• Knotenschiefer
• knot garden
• knot gardens
• knotgrass
• knotgrasses
• knothole
• knotholes
• knotless
• knots