Crossword puzzle clue "said dunno instead of don't know say"

Said "Dunno" instead of "Don't know," say

It's said that he said, "I never said most of the things I said"

Say "I don't" to instead of "I do"?

Goo Goo Dolls song that you probably know from the way John Rzeznik snarls "But you don't even know who I am"

"Don't know ___, but I know I love you"

"If You Don't Know Me By Know" band

They know things you don't think they know

TV character who said "K.O." instead of "O.K."