Intense toothbrush debate erupts on Twitter, causes minty-fresh chaos

In a dystopian future, ultra-violent scavenger gangs roam the arid landscape. Their vehicles are cobbled together from the husks of our now devastated civilisation, beasts of twisted metal, belching out smog. Splattered in red paint on each vehicular abomination is one of two slogans, signifying that gang’s affiliation: Wet First, or Paste First?

Rewind to February 2018, and we see the genesis of this social division: