What is Shitting Kittens?
1.
Being exceptionally excited about something. Saying, "I'm excited about this," only says so much and can be taken in so many ways, but if you say, "this has me shitting kittens," there is no contesting the level of awesomeness that must be awaited.
Scammon: You excited to see Mr. Bungle tonight?
Noah: You kidding me? I'm shitting kittens!
See