Whatbag?

While recently texting my husband, I lazily tried to get out of writing "what are you" in favor of "whatcha." I was hoping that the word would be familiar enough that the phone's autofill would get it right - when it was just a confusing jumble of letters, I hit the "next" button to see what else it might offer. The result: whatbag. Now maybe I'm just ignorant of this word's important place in the American lexicon, but it made me laugh out loud. I'm trying to see how I can start to work this into conversations. It sounds like a joke that Michael Scott would come up with.