Do Not Call Me Paul

This person does not like their birth name; if you call them by it, they will either correct you or ignore you. This could be for a number of reasons. They might feel that you are assuming too much familiarity with them. They might find their real name embarrassing (though their aliases are not always much better). They could want to reinvent themselves. Or it might be that no one calls them by that name besides their parents.

Unfortunately for them, it does not always stick; someone will always call them by their old name, much to their chagrin. This person is not only known by their nickname, despite their best efforts. The person who calls them by their real name might be trying to mock them or threaten them, or perhaps is unaware they feel this way.

The name comes from the fact that the professional wrestlers Triple H (Paul Levesque) and the Big Show (Paul Wight) both have told fans who refer to them by their birth names that since all their friends and even their spouses refer to them by their ring names, as far as they are concerned, those are their real names.

source: tvtropes.org