Cryptosphere has its own lingo and it takes a little getting used to. Maybe this term started as a gaff, or typo, whatever the reasons it stuck with the crypto community and is posthumously recognized and accepted to mean hold on for dear life, sounds about right and fits right into the sentiment too. 
So true. So many words were Greek to me when I first came into crypto. Some sites have compiled Crypto Words and their meanings articles to help newbs better understand the terms