| Abbreviation | Definition |
|---|---|
| DEA | Don't Even Answer |
| DEA | Don't Expect Anything |
| DEAR | Dumb Entries Aren't Read |
| DEETS | Details |
| DEI! | Doofenshmirtz Evil Incorporated! |
| DEM | Them |
| DENSO | Don't Expect Next Saturday Off |
| DEP | Don't Even Pray |
| DET | Don’t Even Try |
| DET | Don't Even Trip |
| DETAI | Don't Even Think About It |
| DEWD | Dude |
| DEYOR | Design Your Own Room |
| DF | Da F*** |
| DF | Dear Fiance |
| DF | Dear Friend |
| DF | Discussion Forum |
| DFAM | Don’t Forget About Me |
| DFKM | Don't F***in Kill Me |
| DFL | Dead F***ng Last |