Include the English library file in a Ruby script, and you can reference the global variables such as VAR\$\_ using less cryptic names, listed in the following table.% \vreftab:english.
Without 'English':
$\ = ' -- '
"waterbuffalo" =~ /buff/
print $", $', $$, "\n"
With English:
require "English"
$OUTPUT_FIELD_SEPARATOR = ' -- '
"waterbuffalo" =~ /buff/
print $LOADED_FEATURES, $POSTMATCH, $PID, "\n"