In NCAA football, to get "Glennoned" is to have your team's undefeated season come crashing down at the hands of a mediocre team, led by a mediocre QB, and one of the only ACC quarterbacks not to transfer to Wisconsin - Mike Glennon.
The resulting defeat crushes your hopes of making it to the BCS title game (but let's face it, the $EC has to be in it regardless) and makes every other win seem insignificant, especially as NC State has a mediocre rest of the season.
Getting Glennoned on the ESPN website is referred to as getting gleasted.
EJ Manuel was hot on the Heisman list until he got Glennoned at Carter-Finley Stadium in Raleigh.