I assume it's a pun but I'm not a native speaker and I don't get why it's named like that.
Is it RIP as in "rest in peace"?
Is it a pun on "riptide"? (Considering he's Australian. afaik that word seems important in Australian culture)
Does "rip" just have its literal sense, "to tear", like a tire that rips things apart?
Or is it not clear even for native speakers?
I think it's something you get if you're a native speaker so I thought about posting in on ell but I figured it's more on-topic here.