A Masculine way of saying a Woman is attractive originating from the idea of that people only tend not to use contraception with partners they consider special. This phrase is a more modern version of the terms Fit Hot & Sexy.
Second definition implies that somebody has done something to mess you up regardless or without mercy.
This is a term commonly used to describe a nice clean fart with no personal repercussions. More specifically, the fart was all air and no water aka poop water.
When you don't bring a bag to work on a Friday because you are going out for Friday night drinks and don't want to leave your bag at the bar because you're too shitfaced