Where a sender sends a second text because they didn't complete their train of thought in the first text, or because they have thought something else to say that they previously missed out of their earlier text.
Person 1 Text i: Yeah I'm going at 5pm to the gym
Person 1 Text ii: But I might go for a run before so may be slightly late
Person 2: Ah, you just did a woopstext. Maybe you should think things through in future mate!