Boston radio producer claims he was trying to make a sexist joke about Mila Kunis’ nipples, not ethnic slur about Mina Kimes

Radio is a tough gig. There are hours worth of segments to fill, and on slow news days, lots of time for extemporaneously blabbering about nothing — and that’s when things can go off the rails. That’s exactly what happened with WEEI Radio’s The Greg Hill Show on Wednesday. During a segment on their “top five nips”, the hosts were discussing several types of hard liquor. The topic was seemingly flowing…