An organization, group, or gang of aggressive/violent teenage girls. They swear to protect their friends from boys and heartbreak. All of the girls in the gang are single. It is lead by three girls, who go by the code names of Jeb, Moko, and Olive. Their gang symbol is the three right fingers on their right hand over their left eye. Their mascot is a ninja snail.

Don't mess with these girls or their friends.
Boy 1: guys, I broke up with my girlfriend.
Boy 2: oh no.
Boy 3: you'd better watch out, the faceless assassins will be after you.
by Slim Biscuit December 19, 2013
Get the Faceless Assassins mug.