Fake vegetarians who have co-opted the term to make themselves feel better and/or undermine the identity of actual vegetarians.
Gopi Kallayil, a blogger for Huffington Post and Marketer for Google, claims to have invented this term to describe himself.
PV: I am a vegetarian, but I love hamburgers and steak and will eat them if there is nothing else around.
AV: Well then, you are not really a vegetarian, are you?
PV: Sure I am, I just made up a new definition of vegetarian. I call it "Practical Vegetarian".
AV: What a great idea! I am going to start calling myself a doctor, even though I never went to medical school. I am a "practical doctor"!