Top Definition
a plastic card that has been used many times to cut and distribute lines of cocaine.
picked up an eight-ball last night man, better break out the gramboni
by granola-core June 07, 2010
1 more definition
(1) A Zamboni Driver named GRAMBO
(2) Any Zamboni drivin by person(s) named Graham/GRAMBO
The Gramboni just put down a sheet of glass
by GRAMBO420 July 07, 2010

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