gbt is an acronym for Gravity Bong Toke. it is the preferred method of ingestion among many potheads. typically, the user will position a bowl on the mouthpiece of an empty
2-liter bottle of pepsi with the
bottom cut off. whilst burning the tweeds in the bowl the user slowly lifts the 2-liter from a container of
water which creates a pressure and simulates the sucking of the bowl. the empty 2-liter quickly becomes quite full with milky smoke. the user then takes one
long exhale, lifts the bowl from the mouth of the 2-liter and proceeds to incapicitate his or herself for the next 3 hours by enhaling the
toxic smoke.