拔顶

拔顶	bá dǐng	topping (mining)
拔	bá	to pull up / to pull out / to draw out by suction / to select / to pick / to stand out (above level) / to surpass / to seize
顶	dǐng	apex / crown of the head / top / roof / most / to carry on the head / to push to the top / to go against / to replace / to substitute / to be subjected to (an aerial bombing, hailstorm etc) / (slang) to "bump" a forum thread to raise its profile / classifier for headwear, hats, veils etc