Beef. What is it?

I’m beefing with a bitch.
Guess that makes me a bitch too
Allow me to assist you
When I cut your wrist
Then pretend to cut my wrist too
Call me the Slasher, the one who creeps alone
I spotted your home, it’s a nice one, a true classic
You’re an independent film, I’m Park Jurassic
I hired a detective with the last of my allowance
Now let’s hit the town
And paint it