YLSOS

internet term, stands for "you lying sack of shit"

guy1: did you have sex yet?
guy2: yeah
guy1: o'rLy?
guy2: hahahaha no
guy1: YLSOS

YLSOS by milFRO September 28, 2006

ysosrs

"Why so serious?"

Smile more.

Made famous by Heath Ledger as The Joker in the recent film, "The Dark Knight."

"I'm dying, my ex-girlfriend gave me the AIDS."

"ysosrs? :D"

ysosrs by Jakuro October 7, 2008

YTSOS 

you the son of shit

YTSOS, shut up!

YTSOS by Lisa Bet February 27, 2015

ylss

Someone who can’t talk about there feeling and lives under a rock; always need advice;

Jenny is so ylss

ylss by That!d!ot@ngie June 19, 2021

ylmost 

most greatly firstest, the most knownly firstest, the most known

ylmost

ylmost by imakeweirddefinitions February 25, 2023