A person who lies in a full bathtub and farts multiple times to smell the gas bubbles as they pop on the surface of the water.
Yo man, I just caught that farbler in the bathtub.

He is such a farbler.
by Lamar Forrester April 30, 2009
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A person who farts while seated in the bathtub, thus creating a deep muffled sound.
To farble or to be a farbler or to have farbled
Jim just farbled while we were taking a bath together, and the smell shot into the air as the bubbles hit the surface. Jim is such a farbler!
by GoodDayMyFriendsSaveOurBeaches February 11, 2010
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