One man in his armour

• one man in his armour: Jonathan Swift, Drapier’s Letters: “Eleven men well armed will certainly subdue one single man in his shirt”
  • Ulysses 547.03: "Doctor Swift says one man in armour will beat ten men in their shirts."

• one man in his armour: an allusion to contraceptives

• one man in his amour: a man in love, or perhaps sexual arousal

• in armour: (Slang) pot valiant, courageous through liquor