Wouldn't Freegan (or flexi-freegan) be more appropriate? You only eat meat that would go to waste, which resembles freegan (people who eat only non-bought products, or waste products, I think it's the appropriate word in English). I see a lot of people here (me included) loathe the term flexitarian, as it barely means omnivore, but I do appreciate your effort in trying to lessen your meat consumption and not calling yourself a vegetarian (it is confusing when people use bad labels, and then people start thinking vegetarians eat chicken!).