The "turducken" of overnight shipping, a Fedupl is something shipped in a DHL package inside a UPS package inside a FedEx package.

Coined by Brad Friedman 10/29/08 upon receiving a Fedupl.

Occurs by chance when a package is sent to a person via DHL, who then in turn sends it to the next party via UPS, who then forwards it to a third person using Federal Express. Can be done intentionally as well.