chuí xián
to water at the mouth
to drool
chuí xián sān chǐ
to drool (over) (idiom)
to yearn for
to covet
to crave
chuí xián yù dī
to drool with desire (idiom); to envy
to hunger for
rǎn zhǐ chuí xián
lit. dirty finger, mouth watering (idiom); fig. greedy to seize sth