definition:
1. (adverb: )To indulge in the activities of tweakers or celebrate the depraved nature that accompanies lack of sleep for seven consecutive days and nights.
2. (noun) : Heaven for tweakers.

Derived from terms Spun (to be under the influence of methamphetamine.) and Gully (Something from the streets, gutter, and/or gangsta) Often used as a form of encouragement to a fellow tweaker.
"Look at Steve, he is dunking it in a spungully!!"

"Did you enjoy frolicking in Spungully?"
by Robin Banks 4 real ; ) July 7, 2015
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