YLF

you little fuck

YLF!

Oh, that's it, YLF!

"I made out with your girlfriend"
"YLF"

by alfe November 12, 2011

YLF

YourLeastFavorite - a well known user on the infamous/famous website tickld.com, where you can spread laughter, cure boredom, and get called cunt a lot

YLF is also the name YourLeastFavorite

by Dookiestew September 2, 2016

ylf

Young Lady Friend

What did you get up to last night?

You know, just spent some quality time with a certain ylf.

by TheScottishMafia December 9, 2010

ylf

Short for: you lazy fuck.

Person 1 didnt show up at school.
Person 2 texts: ylf?
Person 1 answers: Yeah I was really tired this morning :P

by Akidon October 30, 2008