Originally Posted by TheReverend
If you're a fat guy (it gets stored in fat cells) it can stay for a month. An athlete with a solid metabolism is good in under a week.
It can stay for a lot longer than a month even with someone other than a "fat guy". Tons of different variables other than weight/fitness level contribute.
Doesn't really matter though- the analogy was a bad one. Just because you test positive for THC does not mean you are still high. It shouldn't be compared to alcohol in this regard.