How we cite our quotes:
Greasers can't walk alone too much or they'll get jumped, or someone will come by and scream "Greaser!" at them which doesn't make you feel too hot if you know what I mean. (1.4)
In this early passage Pony describes the physical and the psychological violence he has to deal with on a daily basis.
I had never been jumped, but I had seen Johnny after the after four Socs got hold of him, and it wasn't pretty. Johnny was scared of his own shadow after that. He was sixteen then. (1.7)
Later in the novel, Johnny gives Cherry a more detailed description of Johnny's beating, and it's really hard to read. The Outsiders is very clear that the violence is serious and real.
I heard a muttered curse and got slugged again, and they were stuffing a handkerchief in my mouth. (1.16)
The handkerchief is such a creepy detail. The Socs try to quiet Pony in this way almost as a reflex. It tells us that they're experienced in violent assault, and suggests that the activity makes up a big part of their lives. Yick.