Slur as a prompt?

Just to add to C.A. Fulwell's comment, the Oxford Dictionary, the Cambridge Dictionary and the Merriam-Webster all give the 'offensive' tag and the etymology. I imagine the Macquarie does too, but it's behind a paywall. Wikipedia even has long sections dedicated to the differing usage across the English-speaking world.  

'klutz', on the other hand, is clearly marked as 'mainly US' in the Cambridge, 'used in North American English' and 'Yiddish' in the Oxford, and only unmarked in the Merriam-Webster (the dictionary of US English only). Seriously, you need to think outside the US English bubble. If you're using regular common nouns as prompts, you're probably safe, but as soon as you wander into slang/colloquial terms, you're entering a minefield and should properly research them.

The inclusion of the word as a prompt has obviously been unintentional, but asking people to imagine and to consult a reputable dictionary.... ?? No, you really should rethink that reply. Presumably equally unintentional, but even so.

NYC Midnight has international reach far beyond 'NYC', and, as one of the most expensive competitions out there, it's fair for ALL participants to expect due diligence and oversight.