People who tend to use "lion" motives to get to place to place. Worst form of party goer. Someone who has an undeserved sense of entitlement. Commonly will go to places uninvited and being entirely disrespectful for no reason.
Kojak!!! Stop being the lion at this girls house you weren't even invited!
King of the Savannah and Master of all little Cats.
Little Cat: "Lion, I do what I WANNA!!"
THE Lion: *pounces and owns*