Looks like Ole Miss is changing to Sisterhood Day this year too -- but the description still sounds a lot like Skit Day (from the TriDelta site):
Round 3: Sisterhood Day (October 1 and 2) Previously called Skit, this high-energy round is so much fun! Each sorority presents an entertaining, exciting skit to embody the ideals and personality of their sorority. The dress of this round is a fun dress or skirt and top.
http://www.olemisstridelta.org/recruitment.html
***ETA: The explanation on the Ole Miss Panhellenic site, however, doesn't mention a skit (maybe ^this one didn't revise the description):
Round 3 Sisterhood Day (Thursday, October 1, 2015 & Friday, October 2, 2015)
Number Visited: Up to 5 sororities
What to Expect: These highly energetic parties provide an insight into their sisterhood. You’ll talk with members to gain a greater perspective of their sisterhood and how they celebrate their sorority.
What to wear: Dressy casual attire, such as a dress, skirt or pants with a blouse, paired with flats so you can walk comfortably!
http://dos.orgsync.com/org/umgreeks/npcrecwear