Definitions

1. noun

a small, spirited dog, typically of a terrier breed, often used in a pit for fighting, or a lively, spirited person

“The feist was known for its ferocity in the dogfights.”

2. verb

to engage in a fierce or spirited contest, especially in sports, or to provoke or challenge someone

“The two teams feist-ed for the championship title.”

3. verb

to make a feisty or spirited challenge, especially to an opponent in a contest or competition

“The boxer feist-ed his opponent with a flurry of quick punches.”