| Acronym | Meaning |
| CUZ | Because |
| CWOT | Complete Waste Of Time |
| CWYL | Chat With You Later |
| CX | Cancelled |
| CY | Calm Yourself |
| CYA | Cover Your Ass |
| CYA | See Ya |
| CYE | Check Your Email |
| CYL | See You Later |
| CYM | Check Your Mail |
| CYO | See You Online |
| CYT | See You Tomorrow |
| D&M | Deep & Meaningful |
| DAMHIKT | Don't Ask Me How I Know That |
| DARFC | Ducks And Runs For Cover |
| DBA | Doing Business As |
| DBABAI | Don't Be A Bitch About It |
| DBD | Don't Be Dumb |
| DBEYR | Don't Believe Everything You Read |
| DD | Due Diligence |
| DD | Dear Daughter |
| DDD | Direct Distance Dial |
| DDSOS | Different Day, Same Old Sh*t |
| DEF | Definitely |
| DETI | Don't Even Think It |
| DF | Dear Friend |
| DGA | Don't Go Anywhere |
| DGT | Don't Go There |
| DGTG | Don't Go There Girlfriend |
| DGYF | Damn Girl, You're Fine! |
| DH | Dear Husband |
| DHYB | Don't Hold Your Breath |
| DIAF | Die In A Fire |
| DIC | Drunk In Charge |
| DIKU | Do I Know You |
| DILLIGAD | Do I Look Like I Give A Damn |
| DILLIGAS | Do I Look Like I Give A Sh*t? |
| DINK | Double Incomes, No Kids |
| DIRFT | Do It Right The First Time |
| DISTO | Did I Say That Out Loud? |
| DITR | Dancing In The Rain |
| DITYID | Did I Tell You I'm Distressed |
| DIY | Do It Yourself |
| DK | Don't Know |
| DKDC | Don't Know Don't Care |
| DL | Download |
| DL | Dead (hyper)Link |
| DLTBBB | Don't Let The Bed Bugs Bite |
| DLTM | Don't Lie To Me |
| DMI | Don't Mention It |