Blue moon

Unprovoked crippling shooting arse pain you get every now and then (once in a 'blue moon') . Feels like someone is stabbing you in the arse hole for 10 seconds.

Lucy: Arrgghhh!!

Becky: What mate?!
Lucy: feels like someone just stuck a javelin up my butt!
Becky: That'll be a blue moon mate

by MommaGeee April 09, 2021

BLUE MOON

Getting fucked in the ass and indefinitly almost cumming and never getting there...

"I gave her ass such a pounding last night but all she got out of it was a blue moon...."

by Belhol42 February 22, 2023

blue mooned

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"

by Shellebee September 30, 2013

Blue Moon

A blue moon is a man's shaved buttocks. Preferably having shaven it using his girlfriend's razor.

"Hey, that's a nice blue moon you've got there."

"I can't go out tonight. I need some male grooming time, working on my blue moon."

by sally, that girl March 04, 2010

Blue Moon

To moon someone or a group of people, however with also pulling down your underwear or any undergarment, exposing both bare butt cheeks.

“Some random frat guy was drunk as hell last night and decided to blue moon us for no reason... we saw his harry asshole!”

by 69Escort4Hire69 February 28, 2019

once in a blue moon

To do something very rarely, once in a while.

I don't usually hang out here, just once in a blue moon.

by Roboot February 01, 2007

once in a blue moon

To do something on a very rare occasion.

Stephan will come to the office once in a blue moon.

by yurmix February 20, 2018