A man who one can have no strings attached sex with because he is drug and disease free, not interested in commitments and is a great lover.
Jane was married but unhappy with her boring sex life so she is looking for a safe man to bang her.
A position designated with unlocking a complex safe for a bank robbery.
"Adam can do the driving, Barry'll be on crowd control while I look out. I still need a safe man that can get us inside in ninety seconds flat."