When you're having sex with a person and you grab onto their hair and wrap it around your wrists for better grip and control while hitting it from behind.
Dude, last night I had to use the Rein Manuever to hold myself on the bed while having sex with Alexis.
by Reiny day February 26, 2016
The Rein Manuever is when engaging in sexual activities with a person who has long hair and you grab their hair firmly and wrap the hair around your wrists to increase control and grip while smashing from behind them.
Last night while I was smashing with Alexis I almost fell off the bed good thing I performed the Rein Manuever and pulled myself back up.
by Reiny day February 26, 2016