Discovery of scootering

I had a sleepover with my friend yesterday and we watched this thing on scootering. during the sleepover, we played gameboy till one in the morning. In the morning, me and my friend tried to do some of the things they taught you how to do. We could do a wheelie and a grind but not a tail whip. It's when you kick the deck (part that you stand on) around and land back on the deck.