The act of taking a shit and texting at the same time. It usually results in much longer shitting time than was anticipated. When taken too far it can result in a Shexton or Shit Texting Session.
Guy 1- Hey Bro let's get goin, did you fall in?
Guy 2- I'll be out in a minute.
Guy 1- Dude, you said that 10 minutes ago.
Guy 2- Sorry man, i was shexting and it turned into a shexton.