Welcome to Australia mate, or should i say G'Day mate! LOL
Cocaine: Coke, blow, rocks, white, snow, charlie.
Cannabis: weed, puff, green, choof, bud, names of strains, grass.
MDMA: Molly, ex, pills, beans, pingers, dingers, roundies, lollies, rims.
Speed: Glass, shards, ice, meth, speed, goey, goo, gonzales, go-go, cold, fast, pace, amp and we made up a name for it living in EU, theres that guy called Stevie Wonder and my mates changed it to Speedy Wonder and we just call it Wonder now and laugh LOL