So I save all of my roaches and eventually, I have enough to roll a super-fat blunt with all the bud, so say for instance, all of the joints were green, I save the roaches, roll them and smoke it, but save the roach and incorporate that into the next big blunt-roach-blunt, that would mean that it's 2nd generation.. Keep doing that and you build generations, so basically, there's a little bit of weed in this blunt that I smoked last year, possibly, since it's 8th generation now.. It gets to the point where it is just gooey and gross, and not roll-able anymore, so then it goes into the bowl or such..