seagen
n.— «As for food Kelli is what she likes to call a, “Seagen.” A vegan that eats seafood.» —“ Kelli Zink. From hair crush to hair love in a matter products.” by Eliza Siep Chicago Now: Pretty Cheap Feb. 2, 2010. (source: Double-Tongued Dictionary)
Oh, now I know what I am “a seagan”. I always explained myself as a vegetarian that eats fish from time to time. Seagan is of course much shorter 🙂