subtweet

A  subtweet  is a tweet commenting about someone without including their @-name, so they are not notified.

Articles

 * 2013-01-27 Subtweeting: The secret, subtle art of Twitter gossip
 * 2014-01-23 The Guardian UK: Subtweeting: what is it, and how to do it well / Talking about someone behind their back on Twitter is complex. What does it take to master the subtle art of the subtweet?

Brainstorming

 * submention - see: https://boffosocko.com/2018/01/24/definition-of-submention/