While I love this, I can’t pass up the opportunity to explain “pop goes the weasel”.
The song references the cost of food items in its first verse, followed by “that’s the way the money goes, pop goes the weasel”. What exactly a weasel was is up for debate; it could be rhyming slang for a coat, or it could mean the pre-electric type of iron that was heated on a stove before use on clothing. In any case, “pop” was slang for pawning an item for money.