from where did it originate?
"Chick" is American slang for a young woman, and "lit" is a shortened form of the word "literature".
Chick lit
"Chick" is American slang for a young woman, and "lit" is a shortened form of the word "literature". 
who was the devil wears prada based on A young woman who is hired as a personal assistant to a powerful fashion magazine editor. is the above name a kind of writing? A novel who is the author? Lauren Weisberger what is the genre of it? "chick lit" genre what do you mean by this term you used just now? It is a genre fiction, which "consists of heroine-centered narratives that focus on the trials and tribulations of their individual protagonists".
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Chick lit [SEP] Origins of the term
"Chick" is American slang for a young woman, and "lit" is a shortened form of the word "literature". Chick lit scholars note that the term was first used ironically in 1995 by Cris Mazza and Jeffrey DeShell as the title for their edited anthology "Chick Lit: Postfeminist Fiction", which contains 22 short fiction pieces in response to Mazza and DeShell's call for "postfeminist writing". In the mid-1990s, the term was used by various media outlets to describe fiction written by women authors for women readers. The term has been expanded to include female stories in historical fiction, otherwise known as "chick lit in corsets".