Vaping is short for “vaporizing”, which uses a stream of heated air to vaporize the active ingredients in a substance without combustion. Vaping CBD oil simply means vaporizing the cannabinoids into a vapor that can be inhaled just like smoke. What Constitutes as Smoking CBD (or Combustion)? Smoking is defined as a practice in which a substance is burned and the resulting smoke is breathed in to be tasted and absorbed into the bloodstream. In case you didn’t know, you can get physical CBD that you can burn and smoke at your leisure.