13th General Order of a Sentry

In the Navy and Marine Corp there are 11 General Orders of a Sentry, however there are an unofficial twelfth and thirteenth referred to by many.

RDC to Recruit: "What is the "13th General Order of a Sentry?"

Recruit to RDC: "To walk my beat, beat my meat, and fuck/shoot anything within 50 feet."

by Little Dickie January 3, 2009

13th Stepper

Someone who goes to ANY 12 step meeting for the purpose of looking for a one night stand. They see people in recovery as "low hanging fruit" and tend to prey on them for their own sexual gratification whether it be a one night stand or a friends with benefits type situation or even a relationship.

I warned her that he might try to pick her up at the recovery meeting, he was so obviously a 13th stepper. He had always been a predator to ladies in recovery.

by Marla_Singer June 21, 2019

13th birthday

Basically the day you lose your childhood innocence. You become to old to have fun and people start expecting shit from you. You become a teenager. Your parents realize you’re not their precious baby anymore so their tone towards you changes. You turn from a kid to a teenager. Your 13th birthday is the day you lose your childhood and start getting treated like a grown up. To all you twelve year olds, trust me, it’s not that great, all of us 13+ kids would love to go back to our childhood.

Your 13th birthday is the end of your childhood and the fun and innocence goes right away with it.

by Xxxxxxxxfanboyxxxxxxxxxx September 7, 2020

13th of may

fuck your boyfriend day :D

mum-‘ what you doin today?’
me-‘mum its 13th of may, im goin to my boyfriends house.’
mum-‘okay, use protection!’

by l0v3.ly7n January 2, 2022

13th month

Januember, the 13th month of the year, was created by philosopher Elon Musk in the year of 2069, on April 20th. The month was created to make the year 2069 one month longer, so people would be able to enjoy it longer. The month is only put in action in 2069 though.

"Hey, its 2069!"
"I'm so excited for the first and last ever 13th month!"

by Nathan's Username October 18, 2019

13th grade

Derogatory term used to describe one's crappy local community college. The community college is seen as both lacking in real collegiate educational value and additionally using no discretion in its acceptance of every single applicant. It is described as the 13th grade to imply that it is merely an extension of public high school. It is considered only one step above going to beauty school or training in air conditioning and refrigeration repair.

"Judy didn't get accepted by Trenton State, so she's going to the 13th grade"

by titmouse August 1, 2006

13th base

Sex with your boss, professor, or another person you have no business fooling around with . . .

"I did not have sexual relations with that woman . . . it was just 13th base!" -- Bill Clinton

by Scylla June 29, 2006