A spliff is made with a rolling paper like a joint, but the filling has tobacco and cannabis mixed together. Spliffs usually have more tobacco than a blunt, so they will have even more of the energetic, buzzy effects of tobacco. Spliffs usually have crutches like joints.
Spliff smokers can adjust the ratio of cannabis and tobacco to their preference—lots of cannabis with a little tobacco, lots of tobacco with a little cannabis, or somewhere in between.