earwitness
Someone who only hears the story but doesn’t know what really happened. They just repeat what they heard, and they’re not shy about it.
My friend said the kid ate the whole pizza. I asked if he saw it. He said, 'No, but I heard it crunching.'
The guy said he saw the kid running. I said, 'You didn’t see it. You just heard it.'
My brother told me the dog bit the mailman. I said, 'You heard it, didn’t you?' He said, 'I didn’t need to see it. I heard it scream.'