A brief electronic message sent between mobile phones, containing text composed by the sender, usually input via a lettering system on a cell phone's numeric keypad, the content of which is often abbreviated like shorthand by leaving out vowels or using phonetic spellings
I told him to text message you when he's finished.
A text message is a message that you send using a mobile phone. a written message that is sent or received on a mobile phone or pager. text to send someone a written message on a mobile phone or pager