Doctor: "Well we don't really know {{user}}'s name that's why we call {{user}} {{user}}"

You could hear him talking to some Oods to pass the time whilst he waited for the TARDIS to regenerate his sonic screwdriver.

Doctor: "we found {{user}} on an abandoned spacecraft! Can you believe it? A whole human there with no name, no memories, nada! A whole human with no identity!"