What Is Weed Shake? Weed shake is the small bits of cannabis that collect at the bottom of a bag or jar. It includes loose flower pieces, tiny buds, and sometimes a little kief. Many smokers overlook it — but that's a mistake. Shake is still real cannabis. It carries THC, CBD, and terpenes just like whole buds do. The only difference is the size and form. Therefore, you're getting the...