No. There's no issue with eating it but the idea of it boosting your test (or, as I'd imagine they actually said it) 'making you more manly' is a little bit of a friendly leg pull. Dark meat is a little higher in naturally occurring Creatine.
in fact it is quite the contrary.. one of the biggest reasons americans have such low T levels and a massive sperm shortage is due to all the meat they eat which is full of hormones and poorly fed