look up any word, like fleek:
Guext is a combination of the words guess and text.

Guexting is when the screen of one's cellphone breaks but the person continues to use it to send text messages.

They cannot see the screen so they guess what they are texting and as a result are guexting.
"The screen on my phone broke and i haven't gotten a new one yet. I've just been guexting everyone."
by Colin Diederich August 02, 2008