A short history of the 2 chants:
1930s: Who Dat used in cartoons completely unfootball related.
1981: Bengals fans create Who Dey chant during Super Bowl season.
1982: LSU starts Who Dat chant in imitation of the Bengals chant.
1983: Saints steal Who Dat chant from LSU.
2. Who Dey > Who Dat
3. Bengals > Saints
4. The Saints should create their own chant instead of stealing another teams.