A black or white police officer or cop.

An very attractive and enticingly sexy woman.

Possibly derived from Firecracker or Crackerjack. The word visually describes how an such a woman excites a man's mind, emotions and passions.

Sadly, this wonderfully expressive word is under threat due to the rise of alternative meanings.

The use of the word "cracker" to refer to a group of people has it's earliest days in the hacker culture. Crackers originally referred to a group of people(mostly adolescent males) that called themselves hackers, but were really only good for phreaking and messing up computers. Essentially, people who were better at creating problems than fixing them. The members of hacker culture do this to distinguish themselves from their less skillful counterpart. In today's pop culture, cracker has become a racial slur for people of Caucasian descent.

The word "Cracker" was coined in the south by white slave owners. Slave owning whites refered to non slave owning, or poor whites as "crackers." Although it is considered in this day and age to be derogitory word for whites, if you know the history behind the word it is actually a form of flattery.

Racist term for Southern United States white males from their seemingly constant inebriation on "cracked" corn liquior

A device used to "crack" the seal on Nitrous cartridges for inhaling the N20 for a high. The cracker is commonly aluminum, brass or plastic and simply accepts a N20 cartridge (intended for dispensing whip-cream) and pierces the seal, allowing the gas to escape in a controlled fashion. A baloon is attached to the device to capture the gas and allow it to absorb enough heat to be inhaled safely.