Lee Scoresby
1.) Character from His Dark Materials series. Baddest motherfucker around. Drives a hot-air balloon and don't take shit from nobody. 

2.) Someone who displays aggressive levels of bad-assness. 


Definition 2: 

"Did you just see that guy shoot the other dude with a .45 cocked sideways, blindfolded!? In a snow storm?!"
"He's one bad-ass Lee Scoresby."