1. The act of failing miserably on a grand athletic stage, or when the stakes are high. 2. Record-setting failure, usually reserved for college football.
There was an epic example of clemsoning when Clemson hosted Florida State in a highly anticipated football game on October 19, 2013. Clemson was ranked 3rd, while Florida State was ranked 5th. Florida State won the game 51 - 14. Clemson set a NCAA
record for margin of defeat by a home team ranked #3 or higher. The 51 points scored by Florida State is the most points ever allowed by a Clemson opponent on Clemson's home field. Most of the home team fans could not take the clemsoning any longer and left the game mid way through the third quarter.