This is an abbreviation for "rape and murder". Use as a scale to rate women's attractiveness. Ugly and you would only m that. Hot you would r and m that. Angelina Jolie hot, you would r and m that, and then r it again.
Damn she is so fine, I would r and m that, and then r it again.
von Jay Sleazington the 3rd, Yorkshire Sleazes 18. November 2007