Grim Adventures Of Billy And Mandy (the) Easter Egg - chowder?

in the movie underfist: holloween bash there is a part early on when irwin goes to scaars house scaar asks why irwin came to his house, irwin responds with "its halloween, yo!" after he says that he points to a jack 'o lanten float, inside the jack 'o lanterns mouth is chowder, you only see it for a second so look carefully!