Impromptu Gathering Rallied by Social Media

This page is the CodyCross answer for the clue below from Welcome to Japan, Group 580, Puzzle 3 (Hello Kitty).

Question

Impromptu Gathering Rallied by Social Media

Answer

FLASHMOB

Word Meaning:

FLASH MOB — A group of people who rapidly assemble, perform an unusual and seemingly pointless act, and then quickly disperse.

Definitions from Wiktionary.

Impromptu gathering rallied by social media Welcome to Japan Answers