useless trivia: What Word Means: Galvanized Iron?

Questions

"outside there's a boxcar waiting"?

"swingin', swayin', reckless playin'"?

"the wars you bring, the babes you drown, those lost at see & never found"?

"We don't need no education, we don't need no thought control..."?

(song here) Versprung durch technik (song here) be all that you can be?