kinda = "kind of". It is easier to say so it has become slang.
Used in the "kinda" way, it means, "a little to a lot", but never totally.
He kind of looks like me. = "He looks a little like me."
She kind of freaks me out. = "She frightens me a little bit."
You can use "kind of" like this as well - "What kind of ice cream do you want?" used in this way, the person is asking which flavor you want.... it implies that you have a choice.