Ja'Marvin Share definition Flag Ja'Marvin is the type of person who eats all the snacks and doesn't share he will look at you with a nasty fucking face. Ja'Marvin is a good student but doesn't share at lunch. Ja'Marvin by Ja'Marvin September 13, 2019 0 0 Get merch Get the Ja'Marvin mug. Buy Now — $32.95 See more merch