Not that I did that or anything
A foolish person trying their best to lie. If anybody says that, you know they're lying, no matter the context.
"Hey dad, how do I get a penis out of a Cola bottle? Not that I did that or anything."
"I have no idea son, come down here, I don't want to shout."
"Nononono, I don't need to get down, it's fine."
"I have no idea son, come down here, I don't want to shout."
"Nononono, I don't need to get down, it's fine."