Shipping Fictional Characters: When A Ship Is Not A Ship

Usually, I'm the person who is behind in all the latest expressions.  For example, a few months ago, a friend of mine visited from out-of-town and used the phrase "throwing shade".  My husband immediately jumped on board and they started bantering back and forth, while I sat there clueless.  I had no idea what they had meant.  
Just yesterday, this very same friend referred to herself and me as goobers, and, again, I had no idea what she meant!  
Well, a few weeks ago, I finally knew a word that my husband did not.  Fyi, I have an Instagram account where I post an insane number of book pictures.  There is an entire book community on Instagram that lives and breathes books.  Many of these book accounts are down right artistic <3  Anyways, one of the many book events that occurs on Instagram are called "book challenges".  In short, each day is a different book and theme.   Some of my book pictures.

Day 4 of the #winterbookchallenge called for "favorite ship".  When I mentioned this to my husband--who, by the way, is also an avid book lover--he thought I meant watercraft.  At first, I thought he was just having a go at me, because he always seems to know every meme, phrase, trend, you name it.  When I corrected him and told him what 'ship' meant in this situation, he laughed and admitted that he had never heard of that phrase.

It was a fun conversation.  :)