ACDC means "bisexual."
But the guy who used it was from Toronto originally, so perhaps it's a Canadian thing.
Went to fencing practice tonight at the end of a long, wonderful day. I wasn't sure if I should, but I'm so glad I did - I got a great epee lesson and fenced some fun bouts, and the few people who were on campus for practice (most students haven't gotten back yet) were incredibly welcoming. I might even be going to Dublin with them next weekend! To fence! A weapon that I just started learning today! Things move quickly here in Ireland!