It sounds like you are referring to — a phrase that appears to relate to Manipuri (Meiteilon) social media culture, specifically about how to craft engaging new posts (Wari) on Facebook using the concept of Eteima Thu Naba (possibly referring to emotional, heartfelt, or aesthetic storytelling).
The Rise of Digital Visual and Textual Subcultures in Manipur eteima thu naba facebook nabagi wari new
: They often use a "first-person" perspective or include "SMS-style" dialogue to make the reader feel like a witness to a private interaction. It sounds like you are referring to —