Assault Rifle Fifteen 

A synonym for "AR-15" (Armourlight Rifle Fifteen) used by Congressmen to attempt (and fail) to vilify the poor "Assault weapon". It's only used by people (Congressmen their not human) who blame Columbine on Battlefield 4.

Whiney Congressman 1: This Assault Rifle Fifteen was used to kill a man!
Whiney Congressman 2: Yeah! We need to make the mazgizes smaller!
Whiney Congressman 1: We also need to ban 'Assualt grips'!

Assault Rifle Fifteen by Olegthefuckwhit November 29, 2021

froshman negative fifteen 

for those girls of beauty and wonder who appear to eat a lot at times, but magically never gain a pound. frequenting the gym often in colourful tanktops and "planking" to la roux with the occasional "dead muscle," they find themselves pushing each other harder than they ever did in high school, so clubbing together in the summers will not only be enjoyable, but also rewarding.

Fat chick: man that girl got a froshman negative fifteen. i wish i could have her determination.

froshman negative fifteen by skinny-bitch January 26, 2011

number fifteen

The act of fornicating in a coffee shop when exactly Two US Marine Corps veterans are present and a nun is there to bless the ceremony. Whipped cream optional.

Me and my girl totally did a number fifteen at Starbucks today. Yolo.

number fifteen by Pseudonammeelolz September 13, 2013

Fab Fifteen 

A huge party for a girl at 15 to celebrate growing up. Similar to Latin American Quinceanera or the Sweet 16 party common in the USA.

She decided to have a Fab Fifteen instead of a Sweet Sixteen.

Fab Fifteen by claraCooper July 22, 2011

Fab Fifteen (Noun)

A group of 15 highly attractive girls that all live in Massapequa and graduated from Massapequa Highschool in 2004. All gemerations look up to them. They are the most popular group of girls on Long Island and know a great deal about partying.

"Yes! The 'Fab Fifteen' are coming!"

(Other nicknames of the Fab Fifteen are as follows: Fabbers, Baf51, Fab15, Fabulous Fifteen, The Fab, etc.)

Fab Fifteen (Noun) by Samantha March 23, 2005

freshmen fifteen 

a compiled list of fifteen of the hottest freshmen in a college or university. usually contains at least one transsexual

dude 1: damn, i just saw number 7 on the freshmen fifteen, shes smoking!
dude 2: you dumbass shes a transsexual
dude 1: oh SHIT

freshmen fifteen by lolcow4342 November 1, 2009

The O'Kelley Fifteen 

An unintentionally long fifteen minute break taken at your place of employment.

"I started checking my email on break, and before I knew it I had taken The O'Kelley Fifteen."

The O'Kelley Fifteen by salgoldberg January 6, 2010