It's...
...a typical V-twin Harley Engine leaking like my nan without her rubber pants.
(
Doctor When May your wife shat and chipper,
Fri 27 May 2005, 17:29,
archived)
Typically the subject self-terminates
It only looks like that while the T-1000's riding it.
(
Raki,
Wed 1 Jun 2005, 21:08,
archived)