A song by
Jimi Hendrix, (probably) named for a "
legendary" type of
marijuana that was only available in the '60s. According to those who've had it, Purple Haze was the original
one-hit shit. The
formula appears to be lost today, although you can still buy
weed called by that name.
I think it's cool that there is a common mythology among pot-smokers about this. Joseph Campbell would have been glad.