'Choc Lit' has also been registered as a trademark in the United Kingdom and is the name of the publishing house where the term originated.
Taken from the Choc Lit web page:
Established in the UK in 2009, 'Choc Lit' is an independent publisher, specialising in quality women’s fiction with romantic content, where the writing clearly develops the hero’s point of view.
Their books have won 9 awards in their genre, including the 2012 Publisher of the Year and the 2012 Romantic Novel of the Year.
Their novels are distributed world-wide, and are available in both ebook and paperback formats from most stores.
All Choc Lit novels are selected by genuine readers. They only publish novels their 'Choc Lit Tasting Panel' want to see in print.
(I kept seeing the term, 'Choc Lit' but had no idea where it came from. I did some research and, since Urban Dictionary didn't have the info, I added it.)