Mark was simply going downstairs for a snack when he ran into his wife, Rhea Durham, and 10-year-old daughter Grace getting down to the TikTok craze dance. He posted the video and posed just one question: "Could somebody please tell me what this is?"

But, it wasn't just that Rhea and Grace were rapping along to a remixed version of Megan Thee Stallion's "Savage." Check out the vid ... the mother-daughter duo dressed up for the part with flannel shirts and cap. Gotta give Grace bonus points for going the distance and channeling Joe Exotic himself by drawing a goatee on her face and fuzzy chest hair.

If ya missed out, like Mark, the remix was recently created by musician Caleb Jaxin, and so far it's been used in more than 1 million TikTok videos. The remix starts with a roar before you hear the lyrics, "Carole Baskin killed her husband, whacked him. Can’t convince me that it didn’t happen. Fed him to tigers, they snackin’. What’s happenin’, Carole Baskin?"

And, if those lyrics are still confusing to Mark ... someone hook him up with a Netflix password so he can binge 'Tiger King.'