A line from the William and Mary alma mater song. The full verse goes:

"William and Mary, loved of old,
Hark upon the gale!
Hear the thunder of our chorus,
Alma mater hail!"

The college and the students use this phrase a lot, both seriously and in jokes. It is a well-known phrase to anyone at the college.
A few freshmen in the dining hall, loudly: "William and Mary, loved of old..."
Camille: Some freshmen are singing the Alma Mater agian.
Joey: Let's join them!
Camille: Are you serious?
Literally everyone in the dining hall: HARK UPON THE GALE! HEAR THE THUNDER OF OUR CHORUS...
by naked streaker September 25, 2018
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