杀熟

杀熟	shā shú	(coll.) (business) to exploit the trust of acquaintances or loyal customers for profit
杀	shā	to kill; to slay; to murder; to attack / to weaken; to reduce / (dialect) to smart / (used after a verb) extremely
熟	shú	ripe; mature / thoroughly cooked; done / familiar; acquainted / experienced; skilled / (of sleep etc) deep; profound / also pr. [shou2]