What is Cut My Grass?
1.
When your friend sleeps with your girlfriend, or when your friend successfully pulls the girl you were trying to pick up.
I went away for the weekend, and when I came back, I found out the bastard had cut my grass.
See
2.
Drug world term used in straight world to imply an incursion into another's market.
Jim, you know that North Hastings County is where I earn and I really do not appreciate it when you cut my grass.
See