A Highschool, College, NFL, or any other type of defensive football player (usually a defensive end or outside linebacker) that is known to get an impressive amount of sacks.
Julius Peppers, John Abraham, Shawn Marriman, Justin Tuck, Osi Umenyiora, Jared Allen, Joey Porter, James Harrison, Mario Williams, and Demarcus Ware are all examples of current NFL Sack Masters.
Someone who is undeniably amazing. They have so much testosterone and arrogance they can only be described by this one-word tribute.
I am the sackmaster. The sackmaster knowns all...Obey!!!