Fortunato is a sucker for good wines so Montresor tells him that he has Amontillado. Fortunato then insists to go to Montresor's vaults.
Montresor tell Fortunato that he has acquired a pipe of wine which he believes, but is not sure, is an Amontillado. Knowing that Fortunato is vain about his knowledge of wine and of his low regard...
insulted him in the past
Can be either a pry bar or a wench. The slang is a joke of making some inanimate object move based on the "subtle" persuasion of the tool.
You would say: "Komm mit"