Sunshine is a slang word for Mephedrone, a drug that nobody knows much about and has been kept on the down low pretty well.
Its popping up everywhere, is very addictive, and the name Sunshine describes the feeling perfectly.
It's effects last between an hour to 3 hours or so depending on the potency and how much is taken. I'd compare the feeling to the body high of MDMA and the mental high of coke.
It causes jaw clenching and teeth grinding just like MDMA. Contrary to popular beliefs, the chemical in its pure form is not cut with coke or MDMA.
Don't buy a gram of this shit and expect it to last you longer than a night, and dont' expect not to blow money on it the next day, and the next.
I've seen what being addicted to this shit does to people, people don't think its addictive because there's barely any research on it. The first time you do it, after its over all you want is more. If a dealer gives you some for free, you will buy it afterwards, no question, unless you're very strong willed.
it's typically snorted, i've never heard of anyone swallowing it or smoking it or any other way.
This shit's too good, it's bad news.
Dan: Man, i'm shining so hard right now.
Me: That sunshine shit is addictive, be careful.
Dan: No its not, I don't need it. *Snorts the rest of his gram and proceeds to buy more*