just screwing someone that you're not in a relationship/FWBs with. usually someone that you barely know. kind of like fancy way to say one night stand.
Yeah it means having sex with no strings attached at all. I used to be against it but I do think that people have every right to do what they want to
Basically it means sex with someone you are not in a relationship with. Some 'emotional bond' can still happen, as people have sex with friends and there's a platonic bond, but the difference is a lack of romantic bond and commitment.
Having sex with someone who you don't have emotional (romantic) ties to. No commitment. No strings attached. Just sex.