I've probably looked into this too far or something since it hasn't (?) even started yet.
I google translated the heading and came up with "KAR market withi limbs", so I google "KAR" and found it that it stands for karaoke files (sound files).
I then searched for Grip Sounds in the Market and couldn't realise come up with anything conclusive. (searched through the first 30 pages of Market lol, I have no-life)
I checked the account "Dead_Rabbit" and read in earlier posts that rb guys made (something)_Rabbit names. I'm guessing the "_Rabbit" part was just a ruse so I went along with "Dead", who is a banned account here and is now known as Guner. Dead's join date is July 15, 2012. 2012 - 15 = 1997. This month is July and so is his join date (I'm probably over thinking it here), a month before Princess Diana's death. Tried looking for threads made by either Guner/Bird/Dead that involved Grip Sounds, so probably just wasted 30min of my life lel.
Checked out Dead's deactivated inventory and found a Dead Soul item (coincidence or probably over thought).
Anyways that's most of what I got so far, and again I don't even know if this has started yet roflmao, I suppose it's just fun scrolling the forums looking for weird stuff.
Then again, August 31, 1997 could also be a birthday. What's Guner's birthday? hahaha
When I looked at the video I thought of hobo and searched for threads he might have made and involving the sale of Grip Sounds, no results found yet.
tl;dr Heading means 'marketing grip sounds' pretty sure.