Hmm, I think Gem deserves it most
• The cookie of Agincourt :
Everyone got the first one right.
It should indeed have been 'charge', sorry

The terrain was muddy and the armoured knight's charge was stopped, as they got stuck in the mud.
With 'Golden necks got slit through', I was referring to the fact that Henry, desperate for reinforcements, ordered the guards of the imprisoned noblemen to kill their prisoners so they could fight again. Those knights could have earned them a very nice ransom (golden), but of course they were worthless death.
And both Gem and Milarqui gave a part of the last verses explanation : The longbowmen were farmers, and the French had threatened to cut off their fingers in the case they would have lost the battle. That's why putting up your middle and your index finger, showing the palm of your hand, is offensive in England.