Hink-pink

Hink-pink or hinky-pinky is a word game that consists of a question or clue, and the answer is two words that rhyme. For example, the query "A preserved ancient Egyptian ruler who has eaten crackers in bed" would be answered, "A crummy mummy". Note that this reply has two syllables; it would then be called a hinky-pinky.

A 3-word hinky-pinky, or hinky-tinky-pinky might be:

"A cowardly corax expert": hinky-tinky-pinky would be answered: "craven raven maven".

A hinkety-pinkety is even more rare, as it consists of two three-syllable words put together, e.g.

"If a certain famous female Southern writer owned a canning plant, what would it be called?" The answer is "Flannery's Cannery" (after Flannery O'Connor.)

or

The White House: hinkety-pinkety (President's Residence)

Quadruple hink-pinks are so rare as to be almost unheard of, though there is an actual document that uses both a four-syllable word and a five-syllable word which almost fits the bill: the Emancipation Proclamation though a purist might say it doesn't quite rhyme...

An example of a true 'quadruple "hinky"' (or hinketyplow-pinketyplow) might be:

Immobile Notepaper: hinketyplow-pinketyplow (stationary stationery)