Sentence:  For my fellow first-<WSD>gens</WSD>, get ready to hide a smirk, because your life story is likely hidden somewhere in this chapter. For the uninitiated—that is, the person who's never had a thing to do with the Arab way of doing things (namely dating)—I advise you to buckle up. 
Meaning of the word marked with <WSD> tags:  A specific version of something in a chronological sequence.