Someone emphatically stating how much one hates gossiping, that one would never engage in this sort of behavior. This implies that, "thou doth protest too much" and may in fact be a gossip.
When texting/instant messaging with another person usually a girl and the sender sends a message thats either perverted or a message that the reciever of the message does not agree with religiously, morally, or thinks is just plaingross and in return replies with a number of periods.