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
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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 09, 2006
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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
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This is the birthday of the most amazing people. They are the best friends because of how compassionate and funny they are. They’re probably the type of person you can talk to about deep stuff but also be a crackhead with. They accept you no matter what and will stick by your side. They’re also probably down to kill for you if you asked. Be sure you’re ready to do the same for them because whoever is born on this day deserves the world.
Oh, your birthday is July 15? Can we please be friends? Let’s go out sometime and get some donuts or something!!
by A Really Awesome Cool Person October 22, 2019
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Number 15; Burger King foot lettuce, the last thing you would want in your Burger King burger is someone’s foot fungus. But as it turns out that might be what you get.
Dude I just found out I had a number 15
by Clapped and Batty March 01, 2018
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When you start dating your s/o and fall into the trap of changing your eating and exercise habits. This is due to the lack of incentive to be slimmer since being in an established couple leads to complacency.
Nick, now you’re in a new relationship. Which puts you at risk for gaining the boyfriend 15. The boyfriend 15 quickly turns into the boyfriend 20.
by tlapage November 05, 2017
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When you are playing League of Legends and you have a retarded team. ff or forfeit at 15 is the earliest you can surrender with all members of you're team agreeing to give up. This usually happens when your team is getting raped everywhere on the map and you or someone on your team says the game as "unwinnable".
ADC: "Man, our mid is a literal ape, and our jg hasn't ganked.... Also our top is 0-6 . FF at 15 the game is over you guys are chimps"
Support: " Yeah, I agree you guys are buns we cant carry this game you guys are to heavy."
by truffys April 23, 2020
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