Everyone knows the feeling: you leave the room, you reach the bottom of the stairs, and only then does the perfect reply arrive. French calls it *l'esprit d'escalier*, "staircase wit," and Dave Bonta takes the phrase as the title of a seven-line poem that turns this small humiliation into something stranger and darker. The title is the only context the poem gives, and it needs no more. We see a mind alone after the conversation has ended, still chewing.
The opening sets the tone: "I batten like a mad king / on remembered words." To batten on something is to feed greedily and grow fat at its expense, so the verb is far more predatory than "dwell on" or "replay" would be. The speaker is not merely regretting but feasting. The "mad king" adds a ruler presiding over an empty court of his own thoughts, free to indulge his appetite with no one to stop him. The madness here is obsession, the same scene repeated until it has lost touch with the facts.
Then the poem swerves into the pulpit: "My text should be: 'The memory / of the wicked shall rot.'" A preacher's "text" is the verse his sermon is built on, and this one sounds like scripture. It echoes Proverbs 10:7, which in the King James Version reads "the name of the wicked shall rot." The poem puts "memory" where that version has "name," and the change matters. The line break leaves "memory" stranded at the end of a line, and memory is the poem's real subject. The grand biblical curse is the retort the speaker wishes he had delivered, but the verse turns back on him. If the memory of the wicked rots, then he is feeding on something already spoiling. Feeding and decay share one image, and the poem leaves open who the "wicked" is: the person who got the better of him, or the speaker himself.
The second half moves from appetite to performance. "After I go, I make sport / in imitating the dead." "Make sport" suggests play but also mockery, and the speaker seems to be acting out the lost exchange, speaking all the parts. "The dead" could be the words and the finished conversation, now beyond changing. The wording also allows a ghostlier reading, which I take as an inference from the phrasing: "After I go" can sound like "after I die," so the speaker becomes a spirit haunting a scene that has already closed. Either way, the repeated "I" in these lines shows a man who is both actor and only audience.
The final line, "grown fat on moonlight," finishes the thought. The fatness echoes "batten," but now the food is nothing: borrowed, pale light, and the hour is clearly night, the sleepless time when such rehearsals happen. There is also an old link between the moon and madness, since "lunatic" comes from the Latin word for the moon, which quietly ties the last image back to the mad king. His fattening is an illusion. He is swollen with air.
The form carries this. There is no rhyme and no regular meter, only short lines of roughly five to seven syllables, like a mutter under the breath. The poem leans on hard consonants (*wicked*, *rot*, *sport*, *dead*) and then lets its last line relax into the long, soft vowels of "grown" and "moonlight." "Rot" and "sport" also fall at the ends of consecutive lines and almost rhyme, so decay and play are joined by sound as well as sense.
The poem matters because it turns a trivial, universal embarrassment into mock-heroic drama, with kings, sermons, ghosts and feasts. That exaggeration is funny, and it is also honest, because it shows how disproportionate such private brooding is while admitting how real it feels. In a final irony, the poem is itself a piece of staircase wit: the neat, polished form the afterthought takes once the speaker has left the room.