The Fancy Onions is a light poetic form concerning alcoholic beverages, originating in The Persuasive Sin. The rules of the form are applied by poets to produce individual poems which can be recited. The poem is a single tercet. Use of vivid imagery is characteristic of the form. A form of parallelism is common throughout the poem, in that certain lines use the same placement of allusions. Each line has nine syllables. The ending of each line of the poem shares the same rhyme. The third line of the tercet is required to maintain the phrasing of the first line. The first line is intended to make an assertion. It has a terminal caesura. The second line is intended to make a counter-assertion. It has an initial caesura. The third line is intended to synthesize previous ideas.