My mother once referred to the Red in Welsh as the 'cochyn', which literally means 'a red one' but is also a slang term for someone with ginger hair. There's also a famous rugby team in Wales called 'The Scarlets' whose fan club is, believe it or not, called Clwb Cochyn - i.e. 'The Red One Club'.
http://www.scarlets.co.uk/eng/fans/clwbcochyn.php
Their mascot is a large red dragon called 'cochyn' (if you look closely you'll see the kids have the word 'Scarlets' written on their foreheads:
I wonder if Jim is secretly a fan of Welsh rugby?