Wac - PCP on marijuana 
Wack - PCP 
Wacky weed - Marijuana 
Wafers - Methylenedioxymethamphetamine (MDMA) 
Wake and Bake - Marijuana 
Wake ups - Amphetamine 
Wasted - Under the influence of drugs; murdered Water Blunts; methamphetamine; PCP; a mixture of marijuana and other substances within a cigar; Gamma hydroxybutyrate (GHB) 
Water-water - Marijuana cigarettes dipped in embalming fluid, sometimes also laced with PCP 
Wave - Crack Cocaine Wedding bells LSD 
Wedge - LSD 
Weed - Marijuana; PCP 
Weed tea - Marijuana 
Weightless - High on crack 
West Coast - Methylphenidate (ritalin) 
West Coast turnarounds - Amphetamine; methylenedioxymethamphetamine (MDMA) 
Wet - Blunts mixed with marijuana and PCP; methamphetamine; marijuana cigarettes soaked in embalming fluid and dried 
Whack - Crack Cocaine; heroin and PCP; Crack/PCP mixture or marijuana laced with insecticides 
Whackatabacky - Marijuana 
Wheat - Marijuana 
Wheels - Methylenedioxymethamphetamine (MDMA) 
When-shee - Opium 
Whiffledust - Amphetamine; methylenedioxymethamphetamine (MDMA) 
Whippets - Nitrous oxide 
White - Heroin; amphetamine 
White ball - Crack Cocaine 
White boy - Heroin 
White cloud - Smoke that collects in bottom of crack pipe; crack smoke 
White - Cross Amphetamine; methamphetamine 
White dove - Methylenedioxymethamphetamine (MDMA) 
White dragon - Powder cocaine; heroin 
White dust - LSD 
White ghost - Crack Cocaine 
White girl - Cocaine; heroin 
White horizon - PCP 
White horse - Cocaine; heroin 
White junk - Heroin 
White lady - Cocaine; heroin 
White lightning - LSD 
White mosquito - Cocaine 
White nurse - Heroin 
White Owsley's - LSD 
White powder - Cocaine; PCP 
White stuff - Heroin 
White sugar - Crack Cocaine 
White tornado - Crack Cocaine 
White-haired lady - Marijuana 
Whiteout - Inhalants; isobutyl nitrite 
Whites - Amphetamine 
Whiz bang - Cocaine; Heroin and cocaine 
Wicked - A potent brand of heroin 
Wicky stick - PCP, marijuana, and crack 
Wigging - Odd behavior resulting from the use of mind-altering drugs 
Wigits - Methylenedioxymethamphetamine (MDMA) 
Wild cat - Methcathinone mixed with cocaine 
Window glass - LSD 
Window pane - LSD 
Wings - Cocaine; heroin 
Winstrol - Oral steroids 
Winstrol V - Veterinary steroids Witch Cocaine; heroin Witch hazel Heroin 
Wobble weed - PCP 
Wolf - PCP 
Wolfies - Rohypnol 
Wollie - Rocks of crack rolled into a marijuana cigarette or in a cigar 
Wonder star - Methcathinone 
Woolah - Hollowed out cigar refilled with marijuana and crack 
Woolas - Cigarettes laced with cocaine; crack sprinkled on marijuana cigarette 
Woolies - Marijuana and crack or PCP 
Wooly blunts - Marijuana and crack or PCP 
Working - Selling crack 
Working bags - Bags containing several small rocks of crack cocaine 
Working fifty - Crack rock 
weighing - 1/2 gram or more 
Working half - Crack rock 
weighing - 1/2 gram or more 
Working man's cocaine - Methamphetamine 
Works - Equipment for injecting drugs 
Worm - PCP 
Wrecking crew - Crack Cocaine