I'm coming up on 20 years on these boards, and I just passed 50 trips around the Sun. Half a century.
When you don't understand/don't like contemporary slang. Seriously what is the difference between a fan and a stan? A stan is a big fan? I hate it. Also hearing people say "that slaps!", "I'm hype!", "lit", and "fire" really bug me for some irrational reason.