Wiktionary
full of piss and vinegar
a. (context idiomatic English) exuberant or enthusiastic, especially to an excessive degree; brazen.
Usage examples of "full of piss and vinegar".
This time the snake that had hung like a strand of overdone spaghetti was full of piss and vinegar, hissing and biting on its way to Berman's table.
On the other hand, the last I heard, Colonel John Singleton Mosby was still alive and full of piss and vinegar, no matter how dead this namesake at our feet seems to be right now.
Now he felt like himself again, full of piss and vinegar, and if he was almost certain to pay dearly for that feeling tomorrow, well, he'd think about that tomorrow.
But, where he had been full of piss and vinegar, he was thin to the point of gauntness, and suffering haunted his face—.