11th base

Cervical sex. Side effects include: severe pain and bleeding, 80% chance of ruining baby carrying potential, and a light feeling of death. Most likely a good idea to proceed immediately to the hospital after. Note it is an absolute prerequisite to attempt sex with the Fallopian tube - the 12th and penultimate base - superseded only by wound sex, such as skull fucking.

After 3 hours of using the osmotic cervical dilator, I penetrated directly into her womb, reaching the legendary 11th base.

by limitbreaker9000 February 2, 2019

Base 4.5

Base 4 is just sex. Base 4.5 is also sex but with a little more interest. BDSM, Role play, Face Sitting, 69, e.c.t

Man, Ashley suggested we go to base 4.5 last night. I have been waiting for this for the whole 6 months we have been dating!

by Inferno Blade November 2, 2014

Military Base

A facility that consists of military-related buildings, ships, or airplanes that is strictly limited to military personal.

The tourist was so drunk he tried to enter the military base, truly perceiving himself as a member of the military.

by Strawberry Pterodactyls August 16, 2018

9th base

Fingering a girl with one's big toe

"Yeeeeah, my big toe got to 9th base last night!"

by Jimmy Paladino August 23, 2005

56746th base

having sexual intercourse with a dvd player while being butt raped by a whale in the middle of Sweden

Moby Dick likes to get to 56746th base

by the the the the the the the February 5, 2010

7th Base

Is sex with the hole in the throat.

He had a hole in his throat from smoking. So you stuck it in his throat hole? yep, got to 7th base.

by brigon7 July 9, 2009

34th base

Engaging in intercourse with a male dolphin (vaginally or anally), and surviving.

Bob: Tommy's sister is such a slut, I bet she could get to 34th base!

by Epeeist May 26, 2008