A retarded vegetarian; more specifically, a vegetarian that thinks that scientific information regarding human digestion and evolution is wrong and that humans did not evolve to eat meat despite all scientific evidence to the contrary.
High on marijuana. You are so high that your mental abilities are impaired, but not like a retard. You are on the way to becoming the plant you have been enjoying. You are conscious in the way a plant is conscious.
A vegetarian who just cannot stop annoying everyone around him. They constantly try to force their vegetarian "beliefs" on everyone else, even going so far as to RUIN a perfectly good BBQ with friends because everyone worries about bringing vegetarian-friendly food just to make them happy. A Vegetardian is a close cousin to the Catholics.
"God, I used to drink Pepsi but switched to Diet Pepsi Smif still won't shut up about Aspartame being poison! And the other day I was talking about the Bees dying all over North America and Europe and he said something about genetically modified foods! He just went on a long rant on IRC about Bovine Growth Hormone! What a vegetardian."