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1.
(Noun)

The term for bowl of marijuana that lasts an exceptionally long period of time, due to the act of smoking by cornering.
Etymology: Established in Apartment 1112, Kresge College, University of California Santa Cruz
"Since we're low on weed, and because it's Hanaka, we should smoke a sustainabowl.
by Burnin' Banana Slug October 12, 2011