This particular video jumped into my brain a few days ago, and after countless searching my saved videos, I came up empty.
Premise: Guy and Girl (Possibly Dutch) are each making slime in Laundry Baskets (one Red and one Blue) they're competing (somehow) and the guy "loses" so it's decided they'll combine both slimes and it will be dumped on him (Slime is now Purple)
Next thing you see is they're setting up the shot, but... "In order to place the Camera correctly" *wink* he asks her to sit in his spot and is lifting up the laundry basket of slime to get the right shot. He then dumps it on her, and she yells "BABE!" It was supposed to be you or something like that.
I know I've watched it MORE than a few times, but for the life of me I can't locate it now and it's been getting on my nerves.
Anyways, hoping someone here can help in tracking it down or at least confirming I'm not making it up.
Update: After watching Daredevil: Born Again 1x01 and 1x02, I went back to digging through my disorganized files by type and year starting circa 2007, and finally got a hit around August 30th 2016, and found what I was looking for!
"DIY Slime Challenge Prank Backfires!!!"
Alas, Could NOT find that video still listed on YouTube anymore so can't link it here, BUT I did discover I was correct, this Former YouTuber was born in the Netherlands and her name was "Ilja Faro"
Thanks for listening - My brain can stop thinking about this now!