The second fiend carried him inside and said: “Brother, I've brought him.” The old fiend said: “Whom have you brought?” The second fiend said: “Che the Pilgrim — I've bottled him in the gourd.” The old fiend said with delight: “Worthy brother, sit down. Don't move it; only wait till it sloshes when shaken, then peel off the seal.”

裝在葫蘆裡也 zhuāng zài hú lu lǐ yě, bottled in the gourd. The test is stated plainly enough for Wukong to hear and work with: 只等搖得響再揭帖兒 zhǐ děng yáo de xiǎng zài jiē tiě er, wait until it sloshes when shaken, then peel off the seal — the how-well de and the diminutive er, and 帖 read tiě, a slip of paper, not the tiē that means pasting one on. A captive who has liquefied makes a noise; a captive who has not, does not.

Pilgrim heard this and thought: “A whole body like mine — how could it slosh when shaken? Only if I melted to a thin broth would it slosh. Let me piss out a puddle; when it sloshes for him, he'll surely lift the seal and raise the lid, and I'll take the chance and clear off — damn him.”

才搖得響是 cái yáo de xiǎng shì, only then would it slosh. 撒泡溺罷 sā pào niào ba, let me piss out a puddle — 溺 read niào here, standing in for the ordinary word for urine, not the nì that means drowning; the coaxing ba makes it a proposal to himself. 我乘空走他娘罷 wǒ chéng kōng zǒu tā niáng ba, take the opening and clear off, with an expletive in the middle that is coarser in Chinese than most translations let on.

Then he thought again: “No, no. Piss might slosh, but it would only foul this cassock. When he shakes it, I'll just gather up some spittle and rinse my mouth, and with a thin sloshing gurgle trick him into lifting it — then Old Monkey clears off.”

污了這直裰 wū le zhè zhí duō, foul this cassock — a 直裰 is the long straight-cut robe of a monk, and the objection is fastidious rather than practical. 聚些唾津漱口 jù xiē tuò jīn shù kǒu, gather some spittle and rinse the mouth. 稀漓呼喇的 xī lí hū lǎ de is pure sound: a thin, gurgling slosh, counterfeiting the noise a dissolved body would make.