Top Definition
a portmanteau of 2 words gravity and hydroponics. Also part of the word "gravponic confusion" already defined on urbandictionary. Also part of the word "gravponic victory dance" which is also being denied a definition
as fogponics is the portmanteau of fog and hydroponics, gravponics is the portmanteau of gravity and hydroponics. Simple. Read gravponic confusion definition on urban dictionary.
by MikeLeeStamps April 19, 2013

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