look up any word, like swoll:
 
1.
A common occurence that all fast-pace text messengers experience. When in conversation with another, you will send a text before the other has a chance the reply, thus throwing the conversation off track. You will get a text answering a question while you are sending a different text. Thus, simultaneous text messaging.
Bobby: Hey are you picking up the pizza? (6:40)
Bobby: Nevermind I got it. (6:43)
Christine: I thought you had it? (6:43)
Chrisine: Ahh, simul-text
by boi-1-da July 05, 2011
 
2.
Two separate text messages sent to each other by the same two people simultaneously.
I received a simultext from Melissa when I invited her to come out to the concert with us. She asked what I was up to this weekend.
by Nicky Noko November 14, 2008
 
3.
getting one or more person to text the same person the same thing at the same time, leaving them very confused with a potentially frozen-up phone
"We Simultexted him. Everyone sent the message, 'Heyy Sexy ;D' at the same time. He was really confused. We succeeded."
by Mikayla S. March 27, 2010
 
4.
a text message received from the person to whom you are in the process of composing a text message for, often with similar if not identical content.
i was texting bob to ask about the possibility of kicking a hobo tonight, when he simultexted me to ask the same thing.
by japchan March 10, 2009
 
5.
When two people are tracking to such a degree that they text one another at the same time, about the same thing.
Text sent: Wish you were here for afternoon break.
Text received: Missing afternoon break with you today.
.......................................................................................
Text sent: Bah, we just simultexted each other
by Cool_Beans October 07, 2013