bubbler

Short definition from Wiktionary

Noun

1. 1
   Something that emits bubbles.
2. 2
   An airstone for an aquarium.
3. 3
   A drinking fountain.
4. 4
   A device used for smoking marijuana, similar to a cannabis pipe but with a section that holds water, like a bong
5. 5
   One who cheats.
6. 6
   A freshwater drum (Aplodinotus grunniens), of central North America.