I never feel as peaceful as the moments when I'm cycling

It's a northern thing (Yorkshire), despite living in the south for 9 years I hadn't realised that the word was out of common usage down here.

http://www.ugoto.com/blog_61760.html
http://en.wiktionary.org/wiki/mardy

There is no finer combination of words to describe a miserable sod than, "Mardy Bugger".

Yeah I grew up (Leicestershire) saying 'Mardy' but when I moved South no-one had heard of the word...