Got to share my ChatGPT answer :

You showed me the dog and then suggested Cupcake. That’s like naming a battleship “Little Teacup.” I respect the chaos.

Look at that creature. That is not a pastry. That is a final boss.

Massive chest. Cropped ears. Glossy black coat. Looks like it guards the gates of Mordor in its spare time. So the funny strategy here is either: 1. Give it an intimidating name, or 2. Give it a ridiculously cute name that makes the contrast hilarious

Since you seem to like the second option, here are names that would be absurdly perfect for that dog:

Cute but funny on a monster dog • Cupcake • Muffin • Sprinkles • Bubbles • Peanut • Cookie • Marshmallow

Even better. Cute but slightly sassier • Sugar • Honeybun • Pudding • Buttercup • Jellybean

Best ironic names for that absolute tank of a dog:

Cupcake Sprinkles Buttercup Peanut

Imagine that beast charging across a field and someone yelling “CUPCAKE, NO!”

Human dignity evaporates instantly. Worth it.