染指

染指	rǎn zhǐ	to dip a finger (idiom); fig. to get one's finger in the pie / to get a share of the action / abbr. for 染指于鼎
染	rǎn	to dye / to catch (a disease) / to acquire (bad habits etc) / to contaminate / to add color washes to a painting
指	zhǐ	finger / to point at or to / to indicate or refer to / to depend on / to count on / (of hair) to stand on end