Shake and shake
The catsup bottle.
None will come,
And then a lot’ll.

Armour compresses a familiar minor frustration into a comic, nursery-rhyme-like jingle: the stubborn ketchup bottle that yields nothing—until it suddenly disgorges too much. The humor comes from the exaggerated inevitability of the pattern and the neat, sing-song cadence that makes the annoyance feel universal and harmless. Beyond the condiment, the verse works as a miniature observation about delayed results and overcorrection: effort may appear futile for a while, then produce an outsized payoff all at once. Its simplicity and colloquial contraction (“lot’ll”) reinforce the everyday, domestic setting that makes the punchline instantly recognizable.