the actual definition is a dove. The "name" Kallum refers to as of a dove. It means they're a gentleman/gentlelady, They keen to avoid any disasters and will always help you out!
example 1: Look at Kallum, what a gentleman!
example 2: Thank you Kallum for helping me!
Usually a tall guy, Blonde hair and beautiful blue eyes, muscular man that is irrisitable to men and women alike, Usually has a freakishly huge cock, that he could hold you down and crush you with.
Kallum Sullivan's usually last 12 hours in bed at least, If you ever meet one, you'll usually end up under him within an hour, He can normally make you never want to stop.
Guy: "Who's that?"
Guy 2: Kallum Sullivan
Guy: "He's hot"
Guy 2: He's Kallum Sullivan
Guy: I'll go introduce myself
*Guy goes over to Kallum*
Guy: Hello
Kallum Sullivan : Hey
*An hour later Kallum Sullivan has him and three blondes in bed*
Killuminati is Kill Illuminati combined into one word. The term was coined by Tupac Shakur and basically he was saying kill the Illuliminati because they're bad news and basically want to control the world.