taking a fifteen

to take a fifteen minute break in order to masturbate or have quick sexual relations with a partner in a random room.

dude, adam and steve are taking a fifteen in the garage--do not go in there.

by Brian Bryant October 14, 2008

pen fifteen

a trick played on girls who are sweet, oblivious, innocent girls. a mean girl will ask them to join the pen club. she says"i'm pen 13, she's pen 14, and we want you to be pen 15. the girl, oblivious as she is, says ok! then the mean girl writes PEN15 or PENIS on the girl's hand.

that girl who played the pen fifteen trick is SO evil!!!!

by chinchilasrule February 14, 2008

Fifteen Minutes

the amount of time it takes for one to quickly bang someone (usually in a car)

like in the movie grease, "hey putz... 15 minutes!"

by andie September 20, 2003

blackjack fifteen

Used to refer to a woman who isn't hot, but also isn't ugly. You aren't quite sure if you want to hit it.

Term is taken from the popular card game of Blackjack, where it can sometimes be difficult to decide if you want to "hit" when your cards add up to 15.

Bob: Oh man, look at her!
Larry: Eh...she's a blackjack fifteen.
Bob: No way. I would totally hit that.

by otis80085 January 9, 2009

fifteen

A rating given to a girl if you're not sure if you'd hit that. Refers to blackjack.

M1: That stripper was a fifteen.
M2: She was 15?
M1: No, she was A 15...like in blackjack.
M2: Niiiice.

by Barney S. January 11, 2008

fifen

to vote 5 on a totally awesome flash movie at newgrounds.

vote fifen!!

by Joe February 11, 2003

fiefenhaggen

German term of disgust; used in lieu of more profane English words.
Can also be shortened to slang term "fiefen".

What the fiefen's going on in here!?!

by Noah November 8, 2004