The innuendo to top all other innuendos. It is the most vague, ubiquitous, general, and universal innuendo.
"I got so waster last night that a girl blue mooned me"
A sexual act in which blue slurpee, soft drink or food dye is placed into a menstruating vagina. The subsequent period blood which comes forth, along with the blue drink is known as the blue moon, due to the blue colour and the period happening once a month, or moon.
Steve: Shana told me she was on her period last night, so I decided to give her a blue moon.
Jay: Cool digs man.
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(adj.) A person who is extremely odd and weird, for ordering an ice cream that is almond flavored, yet colored blue.
Some boys are just so blue moon, they ask for your number, but never call you.
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the shoving of ones ass (moon) into a womans face and holding in place until the face turns blue.
"last night jessica wouldn't give me a blow job, so i decided to give her a blue moon"
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when a guy moons you but they also pull their balls back between their thighs
Pat enjoyed giving everyone a blue moon
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To do something very rarely, once in a while.
I don't usually hang out here, just once in a blue moon.
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To do something on a very rare occasion.
Stephan will come to the office once in a blue moon.
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