Kababs are supposed to be juicy and tasty. As a result, the experience of eating a
particularly delectable kabab like the ‘Kakori Kabab’ is described by a number of people as being as good as love making.
Just as Finding a bone in your kabab ruins the experience or acts as a
distraction, someone walking in on lovemaking or amorous encounter acts as a mood spoiler or distraction too.
Hence the term don’t be a ‘kabab mein haddi’ is used to tell someone off indirectly that they are being a nuisance ;) esp. in situations such as someone dropping in on bunch of love birds having an intimate dinner.