cat is a small domesticated carnivorous mammal with soft fur, a short snout, and retractile claws.
In slang, cat can mean:
1. A cool or hip person (Hey, you're a cool cat!)
2. In jazz culture, a musician (That cat can really play!)
3. Internet meme "I can haz cheezburger" featuring cats
4. CAT - Computer Assisted Translation
5. CAT - Caterpillar Inc. (heavy equipment manufacturer)