What is another word for a dog shaking off water?

There isn't a single perfect synonym for a dog shaking off water, but here are some options depending on the context and nuance you want to convey:

General:

* Shivering

* Shuddering

* Rattling

* Thrashing

* Wriggling

* Spreading (water)

* Dispersing (water)

More descriptive:

* Vigorously shaking

* Energetically flinging

* Excitedly tossing

* Joyfully flinging (if the dog is happy)

* Exuberantly shaking

* Spattering (water)

Figurative:

* Water ballet (playful)

* Aquatic dance (poetic)

* Liquid acrobatics (impressive)

The best word will depend on the specific situation and the tone you want to set.