The blue meanies are the bad guys in the 1968 cartoon the Yellow Submarine. The meanies have declared war on all that is good, especially music. So they attacked Pepperland and made it blueish.

During their attack, the meanies used a weapon called glove which flies after and crushes anyone or anything that is not blueish. They also like to bonk people on the heads with giant green apples and turn them into stone.

The meanies leader is a female (I am not sure of her name). During the meanies takeover of Pepperland, she cries out, "A thing of beauty...destroy it forever!" She is not a very nice meanie. Her sidekick is Max, he's the plucky comic relief, "Max, Max. It's no longer a blue world, Max. Where shall we go?"

Max replies, "Argentina!"