Does that make the Mayan calendar fresh meat?

Student (chatting about a sermon she is preparing): "The reading from Revelation is doxological.  Pretty, but not a lot of meat to it."
Librarian: "Which is a shame, because there's so much meat in Revelation.  Some of it is crazy meat, but-"
Student 2: "Yeah.  You might want to check the expiration date on that meat."