Trendivism 

A portmanteau of Trendy + Activism:

Joining any activism movement because "it is cool", but they don't even know what they want to want to struggle

Free West Papua, Black Lives Matter, and even "Woke Culture" are few examples of trendivism

Trendivism by Sir. B July 29, 2020

Trendivist

An activist of trends

Ascia is such a trendivist. She only shared posts of #blacklivesmatter on her Instagram because Blake Lively did.

Trendivist by Treysquidz June 16, 2020

trendinista 

Someone (usually a woman) Who will follow/buy/use/wear whatever the latest trend is.

Girl 1: "I waited in line for 9 hours to get my I-phone on the first day they came out"
Girl 2" "Your such a trendinista"

trendinista by Dr. Dee November 25, 2007