1 definition by Una Luna
A complete idiot who messes up all the time, someone who has lack of common sense and are oblivious to the world around them. A moon is a complete fuck up.
"I met that kid once, biggest moon ever" "Oh come on you fucking moon, you fucked over the fax machine, you mooned it big time man" "I've never met a man that mooned as hard as him, he was a huge fuckin luna"
by Una Luna November 20, 2014