Let’s face it, sometimes people want no-strings-attached sex.
It’s a part of life that the Internet has actually made simpler and faster.
Commonly thought of as a series of letters that make up a 'word' there is a distinction between acronyms and shorthand.
The actual definition of an acronym and text shorthand is here.
The majority of the expressions you see above are not acronyms, but rather shorthand used while text messaging or IMing.