When a person is quiet when they walk. This usually leads to the person with Slender syndrome to scare the living hell out of any unsuspecting victim who doesn't hear them coming.
Person 1- Dude, that girl over there scared the hell out of me the other day.
Person 2- How? She looks so innocent and nice.
Person 1- She has Slender Syndrome. She's innocent and nice but quiet as hell. Watch your back.
Person 2- How? She looks so innocent and nice.
Person 1- She has Slender Syndrome. She's innocent and nice but quiet as hell. Watch your back.
by MotherDandy May 1, 2016