DYM 115

Alright, listen up, buttercup. So, you know how milk commercials are all about "Got Milk?" and whatnot? Well, this joke is playing on that, but instead of just saying "milk", it throws in "DYM 115." It's like saying, "Did You Milk?" Get it? It's a play on words, see? You probably need milk, you look malnourished, you twig.