internet slang for "your welcome so much", meant for saying "your welcome", but with more passion when you don't have time to type everything. Or you're just too cool for life.
Aditi: What was the AP Chemistry homework?
Sandeep: It was 15. 39, 41, 49, 51, 57, 67, 80, 85!
Aditi: Omg thank you so much!!
Sandeep: ywsm!!
Ulzzang true definition is "best & "face" = best face in korean. They are basically people with above average looks, sometimes with the use of photoshop and haduri who post their pics online, some becoming internet celebrities.
"Hey, see that chick over there? She's pretty enough to be an ulzzang. :D"