หลังไมค์

Etymology
From 🇰🇲; literally "behind the mike"; originating from the practice of radio shows which allows listeners to call in to talk with the hosts without broadcasting the conversations.

Noun

 * 1)  private talk; private conversation.
 * 2)  direct message; personal message; personal chat.

Verb

 * 1)  to have a private talk or conversation; to talk privately.
 * 2)  to directly message, personally message, or personally chat; to contact or converse through a direct message, personal message, or personal chat.