A cannabis smoker who laments the mixing of tobacco with the herb and causes difficulty to those who do. They will often ruin, hide, throw-out or destroy the tobacco one has to do such out of spite. A batch nazi will often use the excuse that it is for the health of the victim but really only is concerned with the anxiety produced from lack of batch. This is shown because in the same instance this person will buy cigarettes to sell to these people because they know they are desperate. Another common trait is putting extra tobacco lodged into the bowlhead of a bong (aka a rigged bowl) or in one's session to give the victim a rush of tobacco smoke.
"Billy did you take the batch
"No! why would I dont even smoke batch"
"oh there it is"
"now just for accusing me..."
*throws batch out 12th floor window*
"man, why do you have to be such a batch nazi?"