little bitty
Extremely small; tiny. Come on, Catherine, just try a little bitty bite—if you don't like it, you don't have to eat the rest. Ah, don't mind the neighbor's little bitty dog. He likes to yap, but he's a total scaredy cat.
little bitty
very little. Can I have just a little bitty piece of that lemon meringue pie?' He was just a little bitty boy.