1 Ovo-vegetarian diets exclude meat, poultry, seafood and dairy products, but allow eggs. 2  Lacto-ovo vegetarian diets exclude meat, fish and poultry, but allow dairy products and eggs.  Pescatarian diets exclude meat and poultry, dairy, and eggs, but allow fish.
Hash oil is produced by solvent extraction (maceration, infusion or percolation) of marijuana and/or hashish. After filtering and evaporating the solvent, a sticky resinous dark liquid with a strong herbal odor (remarkably different from the peculiar odor of hemp) remains.
Clockwise from top left: weed, hashish oil, hashish, and hashish oil joint. Image Â© Khmanglo, Flickr. Hashish oil is the strongest form of marijuana, and is the least common form of the drug. It is sold in tiny bottles or sealed plastic bags and only a small amount is needed to produce the effects of marijuana. Typically, marijuana oil is smoked in a pipe, or painted onto cigarettes or joints.