水泄不通
shuǐ xiè bù tōng
jam-packed; completely blocked
Character by character
水shuǐ
water
water
泄xiè
leak
leak
不bù
not
not
通tōng
through
through
Example
节假日景区被游客挤得水泄不通。
On public holidays the sights are jammed solid with tourists.
Tone: neutral.
Usage and origin
Usually 围得/挤得/堵得水泄不通.
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