A 40-year-old person who likes Hitler and reproducing with little kids. If a person says rizzler, it means they either are proclaiming their love for Hitler or have just finished having fun with little kids.
A mafia boss you could say the least... I once crossed this mans path I blinked in his presence and had my knees kicked in. Don't mess with this man he will do the unthinkable...
"Don't crossthe Rizzler." Or "Make sure you sent your prayers to the Rizzler."