Why does Mistress Quickly go from calling Captain Pistol to Captain Peesel in II.4 of "Henry IV, Part 2"?
The reason why she calls Pistol "Peesel" is because Mistress Quickly has the curious habit of using the wrong words, or as the eNotes study guide says, "speaking in malapropisms":
Her generosity, her nervous confusion, and her tendency to speak in malapropisms (she uses the word "honeysuckle" for "homicidal" in II.i.50, and "confirmities" for "infirmities" in II.iv.58) frequently leave her vulnerable to Falstaff's swindles and jokes.
One theater critic calls Mistress Quickly the doyenne (or senior member) of malapropism.
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