hubble-bubble vs hubbly-bubbly

hubble-bubble and hubbly-bubbly both are nouns.

Word	Noun	Adjective	Verb	Adverb
hubble-bubble	Yes	No	No	No
hubbly-bubbly	Yes	No	No	No

As nouns, hubble-bubble and hubbly-bubbly are synonyms defined as:

hubble-bubble and hubbly-bubbly: an oriental tobacco pipe with a long flexible tube connected to a container where the smoke is cooled by passing through water

Other synonyms of hubble-bubble include calean, chicha, hookah, kalian, narghile, nargileh, sheesha, shisha, water pipe.

hubble-bubble (noun)	hubbly-bubbly (noun)
an oriental tobacco pipe with a long flexible tube connected to a container where the smoke is cooled by passing through water	an oriental tobacco pipe with a long flexible tube connected to a container where the smoke is cooled by passing through water