the earliest occurrences of ‘feet of clay’, used without explicit reference to the Bible, date from the French Revolution (1789-1799) and translate French ‘pieds d’argile’
nonsense, rubbish—USA, first decade of the 20th century—probably a euphemism for the noun ‘bullshit’, with the noun ‘dust’ used in the sense of ‘rubbish’, ‘garbage’
early 19th century—pandemonium, great trouble or difficulty—often in ‘to kick up hell’s delight’, meaning: to cause a great deal of trouble or difficulty
refers to a person who is ignorant or dismissive of the hardships of others—alludes to the phrase “let them eat cake”, attributed to Marie Antoinette, wife of King of France Louis XVI
USA—1941 (slang of the Marines): a state of disorder or confusion—1959 (High-School slang): a prank in which the occupants of a vehicle which has temporarily come to a stop must jump out, run around the vehicle and get back in
to promote somebody to an ostensibly higher position where they will be out of the way and less influential—jocular variant of ‘to kick somebody downstairs’, meaning to eject somebody