Spellcop Alert (citizen's arrest): wouldn't it be spelled "Mack Daddy"? As in King of all Macks? Stud among studs? The apotheosis of the Manly Man of the Street? Who's your daddy? He is. He's a Mack Daddy. Or maybe just a legend in his own mind, thick-skinned or oblivious to the less-than-compliant reception he receives when he delivers cheesy pick-up lines during his weekend-warrior soirée of macking. Not to be confused with a McDaddy.