叫名之賭 The Wager of the Names
那魔道：「你且過來，我不與你相打，但我叫你一聲，你敢應麼？」行者笑道：「你叫我，我就應了；我若叫你，你可應麼？」那魔道：「我叫你，是我有個寶貝葫蘆，可以裝人；你叫我，卻有何物？」行者道：「我也有個葫蘆兒。」那魔道：「既有，拿出來我看。」行者就於袖中取出葫蘆道：「潑魔，你看。」幌一幌，復藏在袖中，恐他來搶。那魔道：「你且过来，我不与你相打，但我叫你一声，你敢应么？」行者笑道：「你叫我，我就应了；我若叫你，你可应么？」那魔道：「我叫你，是我有个宝贝葫芦，可以装人；你叫我，却有何物？」行者道：「我也有个葫芦儿。」那魔道：「既有，拿出来我看。」行者就于袖中取出葫芦道：「泼魔，你看。」幌一幌，复藏在袖中，恐他来抢。
逐句解 Line by line
The fiend said: “Come here a moment. I’ll not fight you — but if I call you once by name, will you dare answer?”
The whole magic of the scene turns on 應 (yìng), "to answer to a call" — the gourd swallows whoever responds to his own name when summoned. 相打 (xiāng dǎ) is "to fight one another"; 叫你一聲, "call you once."
Pilgrim laughed and said: “When you call me, I’ll answer at once;
Wukong, who already grasps the gourd’s rule, answers with feigned readiness — the trap he means to spring is precisely to make the demon answer in turn.
and if I call you, will you answer too?”
The counter-challenge turns the demon’s own device into a mutual wager — the structural move that will let Wukong bottle him by the same rule.
The fiend said: “When I call you, it’s because I have a treasure-gourd that can bottle a man;
裝人 — "to bottle a person" — states the gourd’s power plainly, the demon still unaware that his questioner holds a rival vessel.
but when you call me, what have you got?”
The demon’s scorn — 卻有何物, "what thing have you?" — sets up Wukong’s deadpan reply.
Pilgrim said: “I too have a little gourd.”
葫蘆兒 (húlu-r) takes the retroflex diminutive 兒 (read -r, a suffix, not ér); the offhand "little gourd" is faintly mocking, matched to Wukong’s nonchalance.
The fiend said: “If you have one, take it out and let me see.”
既有 — "since you have [it]" — the demon demands proof, playing straight into the flash-and-hide that follows.
Pilgrim then drew the gourd out from his sleeve and said: “Look here, vile fiend.”
於袖中取出 — "took [it] out from within his sleeve" — mirrors the 籠在袖中 of the chapter’s opening: what he stowed away he now briefly shows.
He gave it a flash and a shake, then hid it away in his sleeve again, fearing the fiend would come to snatch it.
幌一幌 (huǎng yì huǎng) is "to give it a quick flourish." Hiding it again — 復藏 (fù cáng), 恐他來搶 ("lest he snatch it") — keeps the counterfeit from any close inspection, the sly practical detail on which the deception depends.
The wager over "calling names" lays bare the mechanism the arc runs on: the gourd (and, later, the bottle) swallows whoever answers to his own name once summoned. Wukong’s stroke is to convert the demon’s instrument into a duel of mutual challenge — you call me, I call you — so that the same rule which was meant to trap him can be turned back upon its owner.
The comedy lives in the small gestures: the deadpan 葫蘆兒 ("a little gourd"), and the flash-and-hide of 幌一幌 … 復藏, done for fear the demon will snatch and examine the fake. This is the poised, deceptive lull before the reversal, when Wukong will call the fiend by name and bottle him by his own device.