The movement originally began as a way to share their own experiences with sexual assault, but #HimToo has become a reactionary response to the #MeToo movement, propagated by those who believe false accusations of rape against men are common and a threat to men everywhere.
Unsurprisingly, Marla's tweet backfired and went viral and her son Pieter became the subject of thousands of memes.
The attention went global — and ended with Pieter's brother Jon weighing in and explaining their mum had "made it up".
Even Pieter eventually broke his silence, creating his own Twitter to explain what had gone on.
"That was my Mom. Sometimes the people we love do things that hurt us without realising it. Let's turn this around. I respect and #BelieveWomen . I never have and never will support #HimToo. I'm a proud Navy vet, Cat Dad and Ally. Also, Twitter, your meme game is on point," he wrote.