Doing a Dido

When you realise you have a Classical Civilization or Ancient History lesson at 9am tomorrow, so you put some revision of book 4 of the Aeneid into 'practice'.

"hey did you hear about Joe!?"
"yeah, I heard he hadn't done the worksheet on book 10 for today so he was doing a dido"

"its a bit extreme"
"yeah I know, yikes"