Opening ceremony

When you have to lube a finger and put it in your ass before using it.

I have to commence an opening ceremony before I shit or it will tear me apart.

by Ophinaut October 7, 2021

Open relationship

It's simple enough, if you seal up the leaks, your relationship will be airtight again, it wont be open.

Not everything needs to be loosened in life, things fall apart that way. An open relationship is one of them.

by Solid Mantis October 7, 2020

open-cup

A design of Bra where the cup is cut away to allow the nipple/aureole area to be exposed whilst providing support the the breast, ideal for the fuller bust or for appearing to be wearing a sensible brassiere under a formal suit.

Susie loved her open-cup bra it gave her that softly erotic ' I know someting you don't feeling.'

Sammie was shy about her saggy breasts go without a bra, but her open-cup bra allowed her to 'show pokies' at the mall.

by Townsman December 30, 2014

British Open

Bare assed fart in mouth that results in tainting the teeth from an unexpected squirt.

Dude...I really liked this girl but can't be around her anymore now that I gave her a British Open. Why would she risk asking me to buck in her mouth??

by Smitty' Titty's May 10, 2018

Vault opener

An advanced sexual act, in which the male inserts himself from behind, and then does a cartwheel. imitates the motion of a vault door opening.

keep out of reach of children.

guy 1: man, me and Chrissy got frisky yesterday, ended up trying the vault opener. It ripped my dick off, but other than that it was quite nice.
guy 2: ... Isn't Chrissy the name of your dog?

by DestroyerOfWomans November 10, 2020

PM open

For men: a thirsty call for noods. Like a baboon makes its butt more red to attract a mate. The Kik male uses “PM open” in their username and usually a torso to try and lure women in for the noodles.
For women: a risky move on Kik. 83% of women with “PM open” are actually males (see above) which make the other 17% just wanting some deep.

His username said PM open hoping someone would slide.

by Deepration July 21, 2021

open air

a drug market in the open. usually in the form of tent cities but could just be drug dealing out in the open

I saw Brent at the open air as I drove by. Looks like hes back to using again.

by Nan M. July 16, 2022