Weddy

Calvin: Mom, I'm toe weddy!
Me: You're wetty?
Calvin: No, I'm WEDDY!
Me: You're ready? Ready for what?
Calvin: No, I'm suh, suh, suh, suh (long pause) WEDDY!
Me: You're sledding?
Calvin: No, I'm suh, suh, suh, suh (another long pause) WEDDY!
Me: Um....
Will: You're sweaty?
Calvin: Nodding. Yah, I'm suh, suh, suh WEDDY!

Glad someone was able to figure it out :)