| Abbreviation | Definition |
|---|---|
| Kul | Cool |
| KUP | Keep Updated Please |
| KUTGW | Keep Up The Good Work |
| KW | Kinda Worthless |
| KWIM? | Know What I Mean? |
| KWIS | Know What I'm Saying? |
| KWITTS | Know When It's Time To Stop |
| KWL | Cool! |
| KWSTA | Kiss With Serious Tongue Action |
| KWTD | Know What To Do |
| KWYA | Knowing Who You Are |
| KY | Kill Yourself |
| KY | Klean Yummy |
| KYA | Kick Your A** |
| KYA | Kicked Your A** |
| KYEO | Keep Your Eyes Open |
| KYFC | Keep Your Fingers Crossed |
| KYFC | Keep Your Friends Close |
| KYFHO | Keep Your Frigging Hands Off |
| KYI | Keep You Informed |