No Strings Attached (NSA) sex is another term for having sex with nothing (strings) bonding the two parties together. There is a culture of hooking up that has become popular among college students and young adults.

What is the meaning of NSA hookup?

No Strings Attached NSA: This stands for No Strings Attached. This is when people are looking for a relationship sans the commitment. This is almost like an open relationship, but it does not always mean that people in a NSA relationship will also be seeing other people.