1 definition by Cali Stoner

Top Definition
A bongacle is the resen build up on any kind of downstem on bongs and bubblers with downstems. They start collecting like little barnacles and look pretty rancid because they have been in your bongwater for a while.
Aw dude! You need to clean out your bong, those bongacles are huge!
by Cali Stoner February 06, 2010

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