Part of the 2013 Chinese New Year inspired MAC Year of the Snake Makeup Collection, Plumful is a lustre finish lipstick described as a "blooming rose-plum." The lipstick features a snake design embossing, and the packaging also has the snake-inspired design sleeve covering the usual black packaging. This is the special edition packaging for the Year of the The Snake collection, but Plumful is part of MAC's regular lineup and is easily available any time in the normal packaging/design - in case you are still a Gryffindor loyalist :P
MAC's idea of special-edition packaging is this colorful sleeve that goes over the usual black cover. Thankfully, the lipstick itself also features a snake embossing on it as an added feature, but considering these lipsticks cost the same as the plain versions, I guess I shouldn't grumble too much.
MAC Plumful is a beautiful pinkish plum shade that at least on my skin seems to have a hint of mauve to it. The finish is creamy, glossy, and slightly sheer. Here's how it swatches on my skin, and that is pretty much how it looks on my lips too.