The term 'full of spunk' is often used to describe someone who is spirited and energetic. This can be seen in the crossword solutions for the term, which include SASSY (5 letters), SCRAPPY (7 letters), and FEISTY (6 letters). SASSY implies a boldness and confidence, while SCRAPPY suggests a willingness to fight for what one believes in. FEISTY implies a fiery spirit and a readiness to stand up for oneself. All three words are indicative of someone who is full of spunk.