Tim‧buk‧tu /ˌtɪmbʌkˈtuː/
a city on the edge of the Sahara Desert in Mali, West Africa, whose correct name is Tombouctou. People sometimes mention Timbuktu as an example of a place that is very far away:
There were enough cars to stretch from here to Timbuktu.

[TahlilGaran] Dictionary of Contemporary English ▲