applecest
Incestous shippings (made usually by bronies or "cloppers") involving ponies from the Apple Family from My little Pony: Friendship is Magic.
Examples of applecest:
Big Mac x Applejack
Braeburn x Applejack
Braeburn x Big Mac
Big Mac x Applejack
Braeburn x Applejack
Braeburn x Big Mac