Boat Rudder
Low, abrasive vocal technique that is a staple of metalcore and related musical genres; distinct from the vocal styles of thrash metal, black metal and death metal. The term is primarily used by metalcore's detractors and originates from a popular lyrical interpretation of Trivium's 'Pull Harder on the Strings of your Martyr' on Youtube.
'BOAT RUDDER STRANGE MOUNTAIN' - Matt Heafy