system
impressed: My brother landed a 900 on his skateboard like Tony Hawk.
human
Last week, my brother landed a 900 on his skateboard like Tony Hawk at a skating competition.
gpt
Oh wow, that sounds like it might be cool but I don't know what that looks like, what is the 900?
human
It's when you turn a skateboard 900 degrees while spinning in the air. It's very hard to do, so you can imagine the look on my face when I saw my brother do it.
gpt
Yea, how old is your brother?