moon
When referring to Earth's satellite, 'Moon' is often capitalized as a proper noun, though it can be lowercase when used generally. The verb meaning to expose one's buttocks is considered slang and is very informal. It is typically used in humorous or rebellious contexts. The verb meaning to daydream (mooning over someone) usually requires the preposition 'over' to indicate the object of the longing.
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Look at the moon tonight. Totally disruptive aesthetic.
Stop messing around and just restart your VPN.
Meanings
The natural satellite of the earth, visible by reflected sunlight.
"The full moon cast a bright glow over the silent landscape."
To expose one's buttocks to someone as a prank or insult.
"The prankster decided to moon the passing police car."
To spend time daydreaming or behaving in a longing, sentimental way.
"She spent the entire afternoon mooning over her old photographs."