see here: Im Too Sexy Elmer Fudd - YouTube
Look at her (the rabbit), Those long ears! Aren't you a cute, fuzzy wittle wabbit?
I couldn't find the meanings of wittle and wabbit.
It's also how young children say it. 'Wittle wabbit' is easier to articulate than 'little rabbit'.
I find "wabbit" to be a common pronunciation of "rabbit" from young children. I'm really not sure about "wittle" instead of "little". In BrE, the standard child-like way of saying "little" is "ickle". I realise that doesn't give the same effect as starting both words with "w".
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.
It's babytalk, which people often resort to when talking to animals.