占着茅坑不拉屎

zhàn zhe máo kēng bù lā shǐ

lit. to occupy a latrine but not shit (proverb)

fig. to be a dog in the manger

zhàn

to take possession of

zhe

aspect particle indicating action in progress or ongoing state

máo

reeds

kēng

variant of 坑[keng1]

no; not so

to pull

shǐ

feces; excrement; a stool