barn–burning

chiefly US, informal

1. :  very energetic and impassioned a barn-burning orator barn-burning performances :  prolonged and exciting … he thought the market would begin a barn-burning rally as the leading world economies showed signs of life. — Robert Hurtado, New York Times, 18 June 1993 Canada sneaked past the United States 69–62 in a barn-burning semi-final that went to double overtime … — Will Swanton, The Age (Melbourne, Australia), 16 Sept. 2008