Dabs, or BHO (butane hash oil), are cannabis extracts that contain a much higher THC concentration (70-90%) than the plant alone. They are created in a process that isolates the active ingredient found in marijuana, THC, through the use of butane gas as a solvent. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.