look up any word, like cleveland steamer:
 
1.
1. The act of bending over, pulling down one's pants and showing an innocent person one's ass.

2. A person who *is* an ass. When in situations where the word a$$ is verboten (eating dinner with older relatives, giving a speech in English class at school, or talking on radio or tv), the word "moon" is an acceptable substitute for "ass".
"OMG, that hottie just mooned us! I'm so stoked"

<insert name here> is acting like a spoiled little girl. He's such a moon!
by Von Man February 05, 2010
 
22.
That big rock in the shy that was the target of the so-called "Moon Landing"
Why is it that this location and that location look EXACTLY THE SAME!?
by Human July 29, 2003
 
23.
Moon is a word that gay men use to describe the poon of the man world.
Midge: "Oi, anf look at that poon over there!"
Anf: "Yeh i'd like to get me some of that sweet poon"
Netty: "What about her boyfriend - what a piece of moon he is"
by Midge August 01, 2004
 
24.
Also known as moobles or mooblie. This is a person who stands tall like a wookie, and has significant knowledge in law. This is also closely associated with the word knob.
Oh my god, someone just lamed me. I think it was... Moon.
by IcyVoid November 13, 2005
 
25.
1-my last name
2-that big circle in the sky. Looks like an old donut, but without the hole in the middle of it.
"Hey Crescent Moon!" "That's my name, don't wear it out!"

"Look at that big round thing in the sky! Doesn't it look like an old donut?"
by Crescent Moon June 21, 2004
 
26.
Something that is really cool. The moon is a planet like figure that orbits around the Earth. Usually seen at night, it can be a full moon, or half moon. It's a very interesting thing, and we would be screwed if it wasn't around.
The moon is very colorful, you can see it red, white, and many other colors. =)
by lunar shadows October 31, 2004
 
27.
to pull your pants down and show your bare ass to unexpecting people.
I got arrested for mooning your grandma.
by mullett January 14, 2003
 
28.
(n.) a natural sattelite of the earth, made of cheese.

(v.) The act of going on stage at an astronomy convention, pulling down your trousers, opening your 'cheeks' and saying

"hows this for a black hole?"
Mooning a hardware store will result in a broomstick being forcibly placed in your anus by the manager.
by kung-fu jesus September 07, 2004