碰壁

碰壁	pèng bì	to hit a wall / (fig.) to hit a brick wall; to hit a snag; to have the door slammed in one's face
碰	pèng	variant of 碰
碰	pèng	to touch / to meet with / to bump
碰	pèng	old variant of 碰
壁	bì	wall / rampart