Interior
If there’s a drop on your head and the rice is big, you know you’re in the interior. And by interior, I mean you’re actually inside someone. The rice is big because you’ve shrunk to a tiny size and are inside someone’s stomach. The drop on your head is actually digestive fluid.
Imagine being in the interior of someone’s tummy. See the big pieces of rice all around you as drops of stomach fluid continue to drop down on your head.
おう
おく
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While you’re in the interior of this guy, you hear him break out in song. He starts singing “Oklahoma” (おく) at the top of his lungs. The big pieces of rice slosh around as he sings and dances. “OOOOk-lahoma, where the wind comes sweepin' down the plain!”
If you’re unfamiliar with this Oklahoma song, check it out on YouTube. Imagine being in the interior of someone’s belly as you hear this song booming all around you.