The Abominable-inator was a device made by Heinz Doofenshmirtz, which would turn everything it hit "bigger, scarier, and hairier", as stated by Dr. Doofenshmirtz. It was used in For Your Ice Only by Dr. Doofenshmirtz to make himself more like The Abominable Snowman, so he could look more intimidating. I was used on Perry the Platypus' trap (which consequently freed him) and Dr. Doofenshmirtz. Also, before it was destroyed by falling off cliff, it fired at an Ice Remover, making it giant and hairy.
The giant scarf on the inator is a reference to the Fourth Doctor from Doctor Who.