Parties.

In Seattle we have two types of parties. The first is spodies or kegs, the name changes depending on the alcohol being sold there. Its usually about 100 kids in a park getting hammered right after school. The second type of party is held in someone with chill parents basement. Everyone gets way to fucked up and smokes a ridiculous amount. The guy to girl ratio is maybe 1-5 if they are lucky. Neither are very much fun.
I don't have an image because nothing came up when i typed in "teenagers park red cup" into Google search. I'm sure you can imagine what they look like.