kief is the thc crystals of dro and really good bud and you put it on top of a bowl pack or in a joint. you can smoke it alone also, but you put cig. ash in your bowl then a ball of kief. and if you sell it, it goes for 20 bux a gram. Me and 2 other guys bout a gram of it the other day and we smoked the whole thing in one bowl, and i was so blazed lol, i was so high i had to lay down for alittle bit lol.