biàn​shēng​zhǒu​yè

trouble in one's own backyard

Senses

变生肘腋/ 變生肘腋 biàn​shēng​zhǒu​yè trouble in one's own backyard

(idiom) a major crisis or betrayal occurring very close at hand, such as among close friends or family; literally "a calamity arising from one's armpit"

References

variant 变生肘腋/變生肘腋 祸生肘腋/禍生肘腋
variant 变生肘腋/變生肘腋 事生肘腋/事生肘腋