A 15

Like in black jack a 15 is a girl who your not sure to "hit" ,or "pass".

Guy 1: That girl from last nigh was a 15.
Guy 2 :Wtf you mean?
Guy 1:Im not sure if I should hit it ,or stay; like in blackjack.
Guy 2: Bro totally!

by LJM6 September 8, 2018

A 15

Pronunciation: "Ah 15"

A 15 is a way of describing a girl who you are unsure you want to sleep with, whether she is not sexy or just fugly.

A 15 reffers to the casino version of blackjack. When you get 15, you are never sure if you wanna hit it.

Derives from "How I Met Your Mother"

Boy 1: Hey, you see that girl over there?
Boy 2: Yeah man look at that face? Shes A 15.
Boy 1: Oh you can just get a plastic bag for that face.

by natty56bp January 23, 2012

15

Short for 1500m run.

He ran the 15 in under 4:10.

by thegreatwhitehype September 18, 2003

15

An unnattractive or "sketchy" female.

in reference to a hand in Blackjack.

Guy 1:Dude she was a total 15.
Guy 2: Huh?
Guy 1: As in blackjack...
Guy 2: As in your're not sure if you would hit it.

Guy 1: Yup.

by Undefined234 April 13, 2007

15

When a student from Burton College gets done over the table by his papa.

Luke: I don't believe in 69, I like 15!
His dad: Oh son bend over
Luke: Yayayaya..!

by ByronBitValues March 9, 2006

15-15-30 rule

15-15-30
15 minutes eating ass
15 minutes licking clit
30 minutes fucking

A: sex with my girl has gotten boring
B: you should try the 15-15-30 rule

by Skittlesnacker March 27, 2022

15

another word for when you or someone else farts.

EW! did you just 15??

Damn, those beans in that burrito made me 15 so many times last night.

by 12jddsou March 12, 2006