J - Marijuana cigarette
Jab/job - To inject a drug
Jack - Steal someone else's drugs
Jack-up - To inject a drug
Jackpot - Fentanyl
Jag - Keep a high going
Jam - Cocaine; amphetamine
Jam cecil - Amphetamine
Jamaican gold - Marijuana
Jane - Marijuana
Jay - Marijuana cigarette
Jay smoke - Marijuana
Jee gee - Heroin
Jefferson airplane - Used match cut in half to hold a partially smoked marijuana cigarette
Jejo - Cocaine
Jellies - Depressants; MDMA in gel caps
Jelly - Cocaine
Jelly baby - Amphetamine
Jelly bean - Amphetamine; depressants
Jelly beans - Crack Cocaine
Jerry Springer - Heroin
Jet - Ketamine
Jet fuel - PCP; methamphetamine
Jib - Gamma hydroxybutyrate (GHB)
Jim Jones - Marijuana laced with cocaine and PCP
Jive - Marijuana; heroin; drugs
Jive doo jee - Heroin
Jive stick - Marijuana
Joharito - Heroin
Johnson - Crack Cocaine
Joint - Marijuana cigarette
Jojee - Heroin
Jolly bean - Amphetamine
Jolly green - Marijuana
Jolly pop - Casual user of heroin
Jolt - Strong reaction to drugs; to inject a drug
Jones - Heroin
Jonesing - Need for drugs
Joy - Heroin
Joy flakes - Heroin
Joy juice - Depressants
Joy plant - Opium
Joy pop - To inject a drug
Joy popping - Occasional use of drugs
Joy powder - Cocaine; heroin
Joy smoke - Marijuana
Joy stick - Marijuana cigarette
Ju-ju - Marijuana cigarette
Juan Valdez (Spanish) - Marijuana
Juanita (Spanish) - Marijuana
Juggle - Sell drugs to another addict to support a habit
Juggler - Teen-aged street dealer
Jugs - Amphetamine
Juice - PCP; steroids
Juice joint - Marijuana cigarette sprinkled with crack
Juja - Marijuana
Jum - Sealed plastic bag containing crack
Jumbos - Large vials of crack sold on the streets; marijuana mixed with crack
Junco - Heroin
Junk - Cocaine; heroin
Junkie - Addict
Junkie kits - Glass pipe and copper mesh