Ecstasy (you were probably joking.) Honestly though, I don't know too many people who refer to it as the chemical name MDMA. Normally it's E, X, Molly or Mandy if you're British. Maybe it's an Australian thing?

In response to Zest, they call it MDMA here in Japan, too. Big scandal going on where a popular singer is in big trouble for possessing/taking it.

http://www.japantimes.co.jp/news/2014/08/28/national/crime-leg al/pop-star-aska-pleads-guilty-drug-charges/#.VAklg6OdxI4

Oh yeah. I guess I was only thinking about English speaking countries. Out of curiousity do they have street names for other drugs (i.e. Blow, Speedball, Acid etc.) over there?

Drugs still have a really negative connotation over here. Get caught with a single joint, and chances are good you will do a little jail time.

Right now, the big thing is called Dappo Herb.
http://www.japantimes.co.jp/tag/dappo-herbs/ Some very publicized deaths caused by drivers who had smoked it. Right now, the government has stopped calling it "dappo", and are now calling it "kiken doragu" (dangerous drug).