Muk looks more like it is full of sludge.
I think Garbodor has more **** in it, judging by the color.
Aaand Golurk is not a robot but a possessed clay golem.
And only the manliest of manly can wear skirts and get away with that, and Golurk does so because Golurk is the manliest skyrocketing bro in existence.
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SuperNiceDog won the Guru contest super nicely!