My pp was in the Guinness World Record book.
The librarian then asked me to take it out.
Guinness World Record PP
Explanation
Explain Bear
Alright, listen up, buttercup. This joke is about a dude whose "pp" (that's slang for penis, you innocent muffin) was so big it got into the Guinness World Record book. But get this, he was hanging out at the library, probably looking for tips to dust off his brain, and the librarian told him to put his "pp" away. Get it? It's a double meaning thing!