| Abbreviation | Definition |
|---|---|
| IM | Instant Messaging |
| IM | Intellectually Mild |
| IM | Interrupt Me |
| IM2YYFU | I Am Too Wise For You |
| IMA | I Might Add |
| IMAFO | In My Arrogant Freaking Opinion |
| IMAO | I Am Also One |
| IMAO | I Missed An Opportunity |
| IMAO | I'll Make An Opinion |
| IMAO | In My Amazing Opionin |
| IMAO | In My Angry Opinion |
| IMAO | In My Arrogant Opinion |
| IMB | I aM Back |
| IMB | I Might Be .... |
| IMB | Idaho Message Board |
| IMBO | In My Biased Opinion |
| IMBO | It's Monday Back Off |
| IMBP | I Might Be Pregnant |
| IMBW | I Might Be Wrong |
| IMBW | Is My Blog Working |