option for them than choosing a different route. What do you think about NSA? Is there a clear definition you would give NSA relationships?. No strings attached aka NSA and F**k Buddies aka FB or FWB are actually NSA =tinchungkhoan24h.coms always there just loosely defined. This Slang page is designed to explain what the meaning of NSA is. The slang word / phrase / acronym NSA means . Online Slang Dictionary. This Internet Slang page is designed to explain what the meaning of NSA is. The slang word / acronym / abbreviation NSA means . Internet Slang. A list of. The term NSA is most often used when discussing a type of relationship someone is looking for. It quite simply means “ No Strings Attached. You'll often come across some confusing acronyms when you're online dating, and one of the most common ones is “ NSA,” which just means.