megrim \MEE-grim\ , noun;
1. A migraine.
2. A fancy; a whim.
3. In the plural: lowness of spirits -- often with 'the'.
Though only down 24-21, and with a chance to hold the Tide to a field goal and a last minute shot at a go ahead touchdown, the megrim in the body language of the Texas players as they retreated to the sideline was a clear indicator that the turnover effectively broke the Longhorns' will.