So I tutor kids in math & science on Wednesdays, and right now I have two junior-high kids assigned to me. I still say "cool" and "groovy" and "dig" around them and they are amused by it.
Last week one of them was solving a problem and I scratched out the answer and did the dab. One of them burst into laughter and the other says, "Mr. codewritinfool, you shouldn't dab."
I started laughing and realized that to them, I'm ancient! LOL. So, I'm done dabbing.