hydro ( a.k.a hydroponic ) is a high grade marijuana. It is grown by using hydroponics ( hense the name hyrdo ). Hydroponics is an alternitive to growing the seeds in dirt. It is usually grown in water just like lilly pads grow.
by hyrdonucca June 29, 2009

by MarySue July 29, 2008

Hydraulics, Hydraulic suspension, most commonly seen in older 60s/70s cars as well as some newer rides. Allows the vehicle to roll on 3 wheels, or hop.
by Jeef1 April 22, 2005

by TunerFocus February 22, 2010

Slang term for Hydromorphone - a very potent opiod painkiller that commonly is used for recreational purposes
by Xx Francis Crick Xx June 13, 2018

Hydroponicly grown marijuana, usualy a very strong marijuana plant, and is usualy one of the best buys if you are low on cash.
by Big Kush Oner October 16, 2008

by Hydrofoild February 13, 2008
