Stirlingitis 

Stirlingitis is a terrible afliction affecting many engineers and mechanics who have enjoyed working with the stirling engine. Many who have contracted this condition of being addicted to tinkering and playing with this curious mechanical device can't help themselves but continue to do it for life.

An engineer meets the stirling engine. He can't help but wonder "what if?" there are a million variables. Curiosity has taken advantage of him. He's hooked. He can't help himself. Hence the engineer has contracted "stirlingitis"

Stirlingitis by Anonymous55 September 14, 2012

Stirlingite 

A Stirlingite. A person supporting Lindsey Stirling. having the largest fan group known to Youtube, Facebook and Twitter. These dedicated followers of the amazing hip-hop, rock, dubstep violinist Lindsey Stirling go to extreme lengths to 'KSLL' (Keep spreading Lindsey's love). Every official Stirlingite has suffered from the disease of Stirlingitis, unfortunately an incurable disease but no one's complained about it yet. Being in the Stirlingite family is a decision no one could every regret.

Random Stirlingite1: "Hey, thanks for the add... but do I know you?"
Random Stirlingite2: No, but you're a Stirlingite, so am I, we're already mutual friends!"
Random Stirlingite1: "OH! Great! KSLL Stirlingite!"

Stirlingite by ToniSweden February 3, 2013