HAC Rule
The HAC Rule is like a secret rule for people who have casual sex. It stops them from getting in trouble for hickeys, anal stuff, and choking. If you break it, you could get stuck with a boyfriend or girlfriend.
He had a hickey from his ex. I said, 'You broke the HAC Rule!' He said, 'It was just a hickey!'
She did anal stuff with my brother. I said, 'You broke the HAC Rule!' He said, 'It was just anal!'
I choked my crush during our one-night stand. She said, 'You broke the HAC Rule!' I said, 'It was just choking!'