In other news "'That's what she said' jokes" is an official Library of Congress Subject Heading #sh2010014777— Susie Booth ★ (@spiderfromMARC) December 5, 2016
First, I laughed.
Then, I Googled.
That lead me to the LOC page about the matter.
Librarians. We may seem stodgy at times... but we're not. We're really, really not.