(verb) 1. When you are widely favored to succeed and instead crash & burn. 2. Failing miserably and/or by a wide margin 3. Horribly embarrassing yourself in front of loved ones and strangers alike. 4. Having multiple records broken against you in front of a large audience.
1. When Google Plus launched it took a real Clemsoning. 2. When the hare raced the tortoise he really got Clemsoned. 3. When Snooki's parents decided not to have that abortion, they really pulled a Clemson.