| M | Male | - | Sms Text Smileys and Emoticons |
| M8 | Mate | - | Sms Text Smileys and Emoticons |
| ME2 | Me Too | - | Sms Text Smileys and Emoticons |
| MIL | Mother In Law | - | Sms Text Smileys and Emoticons |
| MORF | Male Or Female | - | Sms Text Smileys and Emoticons |
| MOSS | Member Of The Same Sex | - | Sms Text Smileys and Emoticons |
| MOTAS | Members Of The Appropriate Sex | - | Sms Text Smileys and Emoticons |
| MOTOS | Member Of The Opposite Sex | - | Sms Text Smileys and Emoticons |
| MOTSS | Members Of The Same Sex | - | Sms Text Smileys and Emoticons |
| MSG | Message | - | Sms Text Smileys and Emoticons |
| MTF | More To Follow | - | Sms Text Smileys and Emoticons |
| MUD | Multi User Dungeon | - | Sms Text Smileys and Emoticons |
| MUSM | Miss You So Much | - | Sms Text Smileys and Emoticons |
| MYOB | Mind Your Own Business | - | Sms Text Smileys and Emoticons |
