I'm not fluent in Cat, but to date it seems to mean:
1. I'm hungry, feed me.
2. Let me out,
I gotta pee.
3. Nevermind, I just peed in your potted plants in the
living room and sprayed your favorite recliner.
4. Let me in, I'm sorry. I'm done peeing.
5. Your in my chair.6. My ear itches,
scratch it for me will ya'.
7. I'm soooo glad your home, I missed you today. (See examples 1 and 6 for reasons for being missed).