fifteen minutes 

this is a standard definiton of time used today that bears no real conviction whatsoever, fifteen minutes can be anyware between five minutes and five hours or possibly longer if the individual stating the fifteen minute deadline is a real flake. This is a timeframe typically given by an individual with a minimum 30 minute drive to thier destination that hasnt even woken up yet who is already late when you call them to find out where they are. This timeframe is also given by the same individual when they are stuck in traffic a minimum of 15 miles away that is moving at 5 miles an hour, we can all do the math on that one.

Me: Dude what the fuck, ive been waiting for you for like an hour where the hell are you

Friend: Ill be there in fifteen minutes

fifteen minutes by sonofturbo October 7, 2009

first and fifteenth 

it refers to the time when a drug dealer or hustler is likley to make most of his or her money sellin crack, considering the fact that govement checks are issued on these dates every month.

N.W.A. "Clockin much paper on the first and fifteenth"

first and fifteenth by Bobby R September 29, 2005

Fifteen 

Fifteen is the age in a boy's life where everything sucks. Period.
Your body turns against you in every way possible. Pimples, voice cracks, terrible body odor, unnecessary hair, constant horniness, and greasy skin and hair. Hormones run wild throughout your body producing an array of emotions you can't even understand let alone deal with.
Meanwhile, you have to deal with high school. Projects, homework, hard subjects, sadistic teachers, social crap to sort out, finding allies; they are very hard and common things there.
Also, all the girls you meet at school seem to flourishing into beautiful women. Their wonderful breasts jiggle and taunt you, although you can't have them. The mean ones make fun of you, the nice ones try to humor you, and if you find an absolutely great one that's willing to be your gal, good luck getting the money to pay for her. Businesses won't hire you for a year or so even if you did have the time to work a shitty job.
And there is no relief from this hell that is your life. Doing drugs or alcohol is a temporary release, if you can find, pay for, and not get caught with it. You're just barely smart enough not to commit suicide or run away from home. And you know that porn you're always watching will eventually get you in trouble. All you can do is wait it out.
Also, 15 is the fifteenth number from zero

Dude, why are you so down?
I'm fifteen.
Dude, sorry.

and

3x5=15

Fifteen by roberto151 February 22, 2010

Quarantine Fifteen 

Weight gain acquired during COVID-19 Quarantine Period; fueled by boredom and nervous eating .

I lost my Freshman Fifteen in time for Spring Break but it's coming back as the Quarantine Fifteen.

Quarantine Fifteen by OffLeash2017 March 22, 2020

freshman fifteen 

the phenomenon to put on 15 pounds in your freshman year.

To avoid the Freshman fifteen, you must exercise regularly.

freshman fifteen by Bebel May 23, 2006

fifteen minute punch 

a one hitter quitter.

this phrase came from an in famous internet video in witch a man gets knocked out in a fight shortly after stating how much time was left to fight

dark epiphany:dude last night some old guy gave me shit on the bus so i gave him the "fifteen minute punch"

eclipse:FUCK YEAH!!!!

fifteen minute punch by pianoskills07 April 21, 2007

A fifteen 

A fifteen out of 10, much hotter than a regular 10 out of 10.

That Jessica is such a fifteen

A fifteen by JimmyDicky July 4, 2017