13 

Further to the definition referencing M for Marijuana, this originated from the Hell's Angels, who would have a 13 sown/drawn on their denim jackets if they smoked weed.

See Hunter S Thompson's Hell's Angels, where this is mentioned.

13 by andyrew May 10, 2005

13 

the most entertaining musical ever! music writen by genious, Jason Robert Brown.

About a 12 year old boy moveing to Indiana from New York. He has to deal with fitting in and makeing friends in time for "that one day in october," his Bar Mitzvah, "the event that defines you; the jewish super bowl."
Original Broadway Cast:
Graham Phillips, Allie Trimm, Aaron Simon Gross, Delaney Moro, Elizabeth Gillies, Eric Nelson, Ariana Grande, Eamon Foley, Caitlin Gann, Al Calderon, Brynn Williams, Joey LaVarco, Malik Hammond
<3

person 1-OMG did you see 13??
person 2-yeah! i loved it!
person 3-what's that?
people 1 and 2- GO SEE IT!!!

13 by lovergirly April 16, 2010

13 

SuR 13 Southern Mexicanos; a gang in Cali, and other places such as in ATL too

Sur 13 Rifa

13 by L@_§Mµ®F¥¹³ March 21, 2004

13 

some cool person who is very awesome and chill and funny and definetly gets bitches

13 is so fucking cool

13 by erothicc March 27, 2022

13 

The age which means in Japan you can legally do the do, in America means you know all the dirty teen secrets, and in my mind means another 5 years of torture until you're free to buy a place to live, a car, delete your parents phone numbers, and actually have a life. Oh how much time there is to go. It is also considered an unlucky number for no good reason and is actually a quite nice number. I associate 13 with a sense of balance, as by turning the three once clockwise and putting it on the one, it creates a balance thing. That is all.

KidinJapan1: "Hey I just turned 13"
KidinJapan2: "so are you gonna bang someone or not?"
KidinJapan1: *long pause*

Kidinamerica1: I'm 13!
Kidinamerica2: so tell me what do you think about Mia Khalifa?
Kidinamerica1: *long pause*

Me: I'm 13. Another 5 years to go. Hooray, I survived 13 years so far in this cruel world!

13 by Periwinkle Ocean January 13, 2019

13 

A girl that once you bang, you're not sure if you bang again. Like blackjack. Once you get a 13, you're not sure if you would hit it again.

Billy- "That girl had an amazing body, but an ugly face. She's a 13."
John- "Are you going to hit it again?"
Billy- "Nah, probably not."

13 by BallZach January 5, 2013

13 

the thirteenth letter of the alphabet is M and M is the first letter of marijuana, M is a synonym for Marijuana

Hey i'll give you 20 bucks for 2 grams of 13.

13 by Joseph July 6, 2004