Nickname for the secondary of the 2013 Super Bowl Champion Seattle Seahawks. The Legion of Boom original members were Earl Thomas III, Richard Sherman, Kam Chancellor and Brandon Browner. Newest additions are Walter Thurmond III, Jeremy Lane and Byron Maxwell. Due to the nature of how hard hitting and fast the Seahawks defense is the whole D is starting to take on The Legion of Boom moniker with the national media.
The Seahawks Legion of Boom put a hurting on the Denver Broncos and Peyton Manning in Super Bowl XLVIII to the tune of 43-8.
by Youmanix February 14, 2014
A nickname for the gigantic secondary of the Seattle Seahawks, featuring Brandon Browner, Richard Sherman, Kam "Bam Bam" Chancellor, and Earl Thomas
Holy crap, we're playing the seattle seahawks and their legion of boom. We won't throw for any yards
by velocibear October 10, 2012