Zawinul writes:
Thing is... recently I had to share the company of a load of 17 year olds, and girl told me that the word 'ace' was quite old fashioned. I was hurt at first, but I became obsessed with this and had to find out, so I asked lots of people aged 18 and under whether or not they said 'ace', and it turns out that there are a lot more young people who say 'ace' than those who don't.
I'm 50, and my son is 18. A couple of years ago he and a few buddies stayed overnight at a friend's for a D&D party. The next morning when I went to pick him up he was on his friend's video game system. I looked at his friends and said, "He's incorrigible." A few days later he told me his friends thought I was, quote, "awesome," because I used the word incorrigible. Is that like "ace?"