Can I use "Who's called 'X'?" to mean what an unusual name he has?
For example, "X" is an unusual name, can I say it to myself "Who's called "X"?
I will compare this to another example. When someone does something unusual and then I say "Who does that?"
Can I also use "Who's called 'X' too? What about "Who's named 'X'"?
Thanks.