[quote=Legend]
That's scary because my dog's name is Gizmo.
[/quote]

It makes more sense in context. This is talking to Roarke, a Searonese bounty hunter. Searo is a country of literal metal mares, who are usually encased in armour. Besides that, many of their inner organs are replaced with technological parts, including a manacore. Because of something Rainbow Dash did to the world, magic temporarily broke, and Roarke's manacore died. For a few chapters, we thought she was dead, until her backup manacore started up. Ebon Mane asked how she had a backup manacore, and Props, who might as well be Pinkie incarnate, said that. "Why fill your body with two-thirds gizmos if you can fill it with three-fourths gizmos at thrice the cost?!"