Funcomfortable
When, in a situation where you would normally be physically, socially, or otherwise uncomfortable, you do not feel the discomfort because you are enjoying yourself too much to care.
Roy was sitting on a spiked rock in the freezing cold, along with 20 other sweaty and smelly campers, singing out of tune at the top of their lungs, and was nothing less than funcomfortable since he was having such a good time.