This happens when the girl you like is with another guy. So, in order to make sure that guy does not get with the girl you like, you constantly text message the girl. If you get a reply, you have just successfully text blocked another guy.
In the following situation, Guy2 has successfully text blocked Guy:
Guy: Hey, lets go back to my place.
Guy2(from a different location): *Sends text message to Girl: Hey, lets hang out.*
Girl(to Guy): Ok...sure, but hold on I just got a text from Guy2. *She replies: I can't, I am with another guy.*
Guy2: *Text message 2: Is he chill?*
Girl: *Text message 2: Nope, i dont really like him too much, lets hang out later.*
However, in the following situation, Guy2 has failed to text block Guy.
Guy: Hey, lets go back to my place.
Guy2(from a different location): *Sends text message to Girl: Hey, lets hang out.*
Girl(to Guy): Ok, let go. *Gets a text message and pays no attention to it.*
18👍 10👎