There is an additional joke in that the narrator's exhortations peripheral to each word all relate to that word's meaning. I don't know the poem, so can't say w

There is an additional joke in that the narrator's exhortations peripheral to each word all relate to that word's meaning. I don't know the poem, so can't say whether that is the narrator's joke or the author's, but it's not there by accident in any case.