| Abbreviation | Definition |
|---|---|
| MSG | Monster Sky Girl |
| MSH | Marvel Super Heroes |
| MSK | Majora Skull Kid |
| MSL | Mew's Secret Land |
| MSN | Major Shaft Network |
| MSN | Make Some Noise |
| MSN | Many Singing Norwegians |
| MSN | Many Single Nerds |
| MSN | Me Speak Nogoodengrish |
| MSN | Meet Someone Nice |
| MSN | Mentally Sub-Normal |
| MSN | Mighty Secret Nattering |
| MSN | Mighty Slow Network |
| MSN | Mind Softening Nutrasweet |
| MSN | Money Sold Now |
| MSN | Monkey Spanking Nerd |
| MSN | More Sociopaths Needed |
| MSN | More Stupid Nonsense |
| MSN | Most Sensored Network |
| MSN | Most Shity Network |