7 Sep Casual Dating Terms Explained – NSA, DTF, ONS, MBA attaching meaning and creating abbreviations to help us navigate an increasingly. NSA could mean different things to different people as there are many When you apply NSA to regular dating then it's basically casual dating, and I think we all. 18 Dec There are three very different kinds of casual sex. “When I was involved in my hook-up relationship I would never call him up for a sober. The two of you are already in a great relationship, and going further than that for the fun of it isn't the best idea. Remember, this isn't a committed relationship, so their responsibility isn't yours. The two participants in the relationship will reach an agreement about what each expects from the relationship. You must be emotionally prepared to be in an NSA relationship. Cicisbeo Concubinage Courtesan Mistress. For many, these acronyms have even become part of our daily speech patterns. And this means that you can be as selfish as you want in bed.