Dangling Pointer
/daŋ-gəliŋ pȯin-tər/
n. A reference that doesn't actually lead
anywhere (in C and some other languages, a pointer that doesn't
actually point at anything valid). Usually this is because it
formerly pointed to something that has moved or disappeared. Used
as jargon in a generalization of its techspeak meaning; for
example, a local phone number for a person who has since moved to the
other coast is a dangling pointer.