Let slip and Tell on

Tell on and let slip are semantically related in divulge topic. In some cases you can use "Tell on" instead a verb phrase "Let slip", when it comes to topics like gossip.

Tell on verb - To act upon (a person or a person's feelings) so as to cause a response.

Let slip and tell on are semantically related in divulge topic. You can use "Let slip" instead a verb "Tell on", if it concerns topics such as gossip.