A person who does not fit in to any group. The strong silent type, always observing and analyzing situations before getting involved. May have a lot to say but does not say it. Often settles problems alone and is more than capable of it. For the few who get to know him/her a close and loyal friend they will find. A black cat is a nomad, forever roaming the world. A black cat may seem shy to some but make no mistake, he/she is merely bored and is thinking of greater things. Black cats are not judgemental and are easy to confide in. A beloved friend, though not always around. They may not understand your affection toward them, but will always return friendship. A black cat is extremely good at figuring people out, as a result black cats fall in love easy after accepting all your faults and your trust. They can fall for more than one person resulting in bad luck. When a black cat is your lover only death can keep you apart, but not for long. The person you want to cross paths with, The perfect lover and loyal best friend, a black cat roaming.

Mostly well-known as a major brand of fireworks. In a classic episode of "Reno 911", the two black cops, Officers Jones and Williams go to the home of a weird hippie who is stockpiling fireworks that are illegal.

So Officer Jones picks up a package of Black Cat fireworks, saying "You know Black Cat's are illegal in the state of Nevada." The hippie responds with "You guys are a couple of black cats."

Some believe they're bad luck. Some say that's racist. I say Its just a cat it's not racist or bad luck. Well it is bad luck if you're a mouse.

an illegial firework
and in an Hollywood Undead song called Scene kids for dummies
they say
"I could barely walk around cause the dance floor was so packed
I walked to the back and lit off some black cats - BAP BAP BAP hahaha!"

Small firework that you throw in people's lawns when they least expect it.

The very best anime, ever