I think it's called indirect syntax in contrast to CGI->new being the direct syntax.
/me ponders that...
Though you might read new CGI as calling new from CGI .
This would hold for new SomeClass, mostly because "new" is hardly a verb. It's an adjective, at best. Were new called create (construct, make, whatever) instead, as in $cgi = create CGI then we'd be right back at the kick $ball example. The grammatical object (CGI, SomeClass, $ball, $foo, et cetera) we're dealing with is something that is directly acted upon.
Another example could be save $file, assuming that somehow $file->can('save') . Again, the grammatical object is a direct one.
Contrast that with
move $file "~"; # $file->move("~"), or move a file to one's home dire +ctory, # where $file is the thing being acted upon *directly +* # and "~" is just another grammatical argument to the + verb.