Don’t you love when you ask a question and many times, people take that as a great time to be an expert?
Here is the official answer, (I think).
According to the university, Kansas University’s Rock Chalk Chant evolved from a cheer that a chemistry professor, E.H.S. Bailey, created for the KU science club in 1886. Bailey’s version was “Rah, Rah, Jayhawk, KU” repeated three times. The rahs were later replaced by “Rock Chalk,” a transposition of chalk rock, the name for the limestone outcropping found on Mount Oread, site of the Lawrence campus.
So there you have it. Another mystery solved.
Sounds like my old alma mater..