Definition of "firecracker" in English

noun

1. A small explosive device, typically containing a small amount of gunpowder in a tightly-wound roll of paper, primarily designed to produce a large bang.

2. (slang) A peanut butter cracker baked with marijuana, similar in concept to an Alice B. Toklas brownie.

3. (slang) An individual who is quick-tempered, rambunctious, or unpredictable.