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!
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*
Kallum: A God amongst men, like's to hide his feelings around his friends. He can cause pain and misery to anyone that gets in his way. His love life is a secret but if you were to ask any of the women he went out with they would say he's amazing.
I saw "Kallum" the other day and I thought to myself how is his love life going