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

Person 1: "Yo wanna get some Biryani tonight?"
Person 2: "Bet, as long as it's Hydro doe"
Person 1: "nakko fam I'm too beat to go outside rn"
Person 2: "tf does nakko mean??"
Person 1: "it's like nahhh, but in Hydro Urdu"
Person 2: "Bet, as long as it's Hydro doe"
Person 1: "nakko fam I'm too beat to go outside rn"
Person 2: "tf does nakko mean??"
Person 1: "it's like nahhh, but in Hydro Urdu"
by Irfaaaaannn February 16, 2021

Marijuana grown indoors using a hydroponics system (tubes and filters with water and fertilizers). To correct the first definition, NO marijuana causes mental problems - but it does get you really high.
by Johnnybong May 21, 2005

short for hydrocodone its related to codeine and is in a class of drugs called narcotic analgesics. It is a pain reliever most pill poppers take it to get high
by PUNK barbie March 26, 2003

by DeVonTheDucer July 28, 2003

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
