What is Beat In?
1.
A way of joining a gang which a group of people beat you up for about 2 min or so then after you are in the gang
To get into the gang i had to go through a beat in
2.
When a bunch of people get together and masterbate in public.
"Hey, want to come kill homeless people tonight?"
"No, I have to go to the store and buy some KY Jelly. I'm going to a Beat In"