My dick was in the book of world records.
But then the librarian asked me to take it out.
Book of World Records
Categories
Explanation
Experiment
The joke plays on the double meaning of "in the book of world records." It leads you to think about the size of the person's penis (dick) being record-breaking, but it turns out the penis was literally inside a book, and the librarian asked him to remove it from the book.