Checking to make sure they have enough time to brake without rear-ending you (pissing them off).
2. Act of slamming on the brakes to make a passenger in your car fly forward.
2. My friend totally brake checked me and I hit the dash board and got knocked out.
Many people do not realize it, but it is the person who slammed on his/her brakes that are at fault, not the tailgater.
If the police finds out about this, the tailgater will most likely be cited for following too close, and fined, but the brake checker will be arrested for reckless driving, and charged with a misdemeanor (or felony if someone gets injured or killed).
Tailgater: Your fault, not mine.
Brake checker: No, it's your fault, because you were following too close.
Tailgater: Let's see what the police says.
Police officer: Tailgater, this is a citation for following too close. Take care of that as soon as possible.
Tailgater: Thank you officer.
Brake checker: I'd better be on my way.
Police officer: No, you're coming with me. You're under arrest for driving recklessly with the intent to cause an accident.
Brake checker: FFFFFFFFFFFFFFFFFFFFFFUUUUUUUUUUUUUUUUUUUUUUUUUU!!!!!!!!!!!!!!!
Tailgater: U mad bro?