1. most resembling or characteristic of a dog
Usage: superlative form of doggy
2. most stubbornly persistent or determined
Usage: informal; superlative form of dogged

Examples

• That’s the doggiest behavior I’ve ever seen from a pet.
• She showed the doggiest determination to finish the marathon.
• His doggiest loyalty impressed everyone at the company.
• The puppy had the doggiest eyes when begging for treats.
• With doggiest persistence, he finally solved the puzzle.
• That was the doggiest effort anyone had made all season.