Are you sure She wasn't talking about the one in Iowa
https://iowarabbitfestival.org/
No, definitely Easter. When I figured it out I was laughing so hard she hit me thinking I was laughing at her. I told her that I am laughing at Americans as I can see how from her Thai viewpoint Easter is about rabbits as everywhere in stores Easter is represented by rabbits such as chocolate bunnies, marshmallow bunnies, stuffed rabbits, rabbit signs, etc.
Then I had to decide how much to tell her about Easter supposed to be about the Resurrection of Christ and the religion behind it. I chose to say that Easter is supposed to be about the religion of Christ but America as usual commercialized the hell out of it, as with the other holidays where the true meaning is lost or ignored.
This also led to how rabbits used to be a common source of food for rural areas. One of my elder friends related part of his morning chores was to check the rabbit traps before going to school so rabbit was a staple food source for them.