Mamil
Mamil or MAMIL (an acronym standing for "middle-aged man in lycra".) is a middle aged man who rides an expensive racing bicycle for leisure, wearing professional style body-hugging bicycle jerseys and bicycle shorts.
The word was reportedly coined by British marketing research firm Mintel in 2010. It gained further popularity in the United Kingdom with the success of Bradley Wiggins in the 2012 Tour de France and at the 2012 Summer Olympics