It really irks you I guess. Nothing wrong with using the term gik. Just as there is nothing wrong with referring to Bangkok as Krung Thep. Some of you apparently live here right ? Learn the language, just as all of these westerners expect their immigrants to do...
By the way, I had to bing MDMA, turns out it is ecstacy, kind of like the same chemical shit as Jabaa. One must be utterly crazy to even contemplate taking that shit.