Invigilatrix 

When an invigilator in an exam becomes the victim of a crush. Often induced by massive boredom suffered by candidates who have finished too quickly/can't concentrate at all and invent daring sexual fantasies involving one or more of the invigilators. (Word comes from 'dominatrix')

Man! Couldn't concentrate on that Chemistry paper because that Invigilatrix was staring at me!'

Invigilatrix by chambers1950 January 14, 2010