bubbler

noun6

1. •
   Something that emits bubbles.

   • In proof of this I can assert my success in extinguishing a youthful bubbler near Reykholt church. — 1860
2. •
   An airstone for an aquarium.
3. •
   A device used for smoking marijuana, similar to a cannabis pipe but with a section that holds water, like a bong
4. •
   (Australia) A drinking fountain.
5. •
   (US) A freshwater drum (Aplodinotus grunniens), of central North America.
6. •
   (no longer used) One who cheats.

   • ...above all the Jews, jobbers, bubblers, subscribers, projectors, directors, governors, treasurers, &c. — 1772