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To Be Humid
intransitive verb, ichidan verb
If something is steaming, it makes the room all humid, making this word to be humid (because you're not doing the humiding).
What is making things to be humid? That would be that cow. Every time he says, "Moo" (む) he spurts out a ton of steam making the room all humid.
These shoes look cute, but they make my feet sweaty and stinky.