look up any word, like sex:
 
1.
dog, i was beatin this girl when her boyfriend walked in!
by p. Bills July 20, 2006
49 15
 
2.
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
by no-name September 08, 2003
21 5
 
3.
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"
by Grand Master B August 14, 2005
7 16