變生肘腋 [ㄅㄧㄢˋ ㄕㄥ ㄓㄡˇ ㄧㄝˋ; bian4 sheng1 zhou3 ye4] lit. calamity in one's armpit (idiom); a major coup happening on one's doorstep trouble or danger in one's own backyard ◄ ►