this is not a rule question, merely a flavor text question, but this still seems the right place for it.

In the "goblin pride day" card, the goblin is uttering the slogan "we're mean, we're green, and we must be seen". every time i see the card, i feel that it must be a twist on a real, real-world slogan, except i have no idea what such a slogan could be. can someone enlighten me?