Partyvore
Noun: A person who chooses to break their personal none-meat eating preference on special, mostly marry occasions.
*At a restaurant, celebrating one's birthday*
A: Dude, isn't John vegan? That's a whole lot of lamb chops he got there
B: True. Guess he's a Partyvore
A: Dude, isn't John vegan? That's a whole lot of lamb chops he got there
B: True. Guess he's a Partyvore