The Canadian Pipeline, not to be confused with the Alaskan Pipeline, is when two people each insert the end of a straw or tube into their butt. Then one of them farts, causing the air to travel into the others ass.
Alex: Hey dude, wanna canadian pipeline with me? I had chili for dinner.
Derek: No thanks, you might shart into my ass.
A small town adjacent to Oakland which is known for being mainly white with other minority groups sprinkled in. The majority of its residents are upper middle class or wealthier and the children of Piedmont are either enrolled in its "very good" public school system or attend immensely expensive private schools in the immediate Bay Area. But, it's worth noting that this town is not full of typical all-American families. Most people are liberal and most of the children indulge in dubious behavior to which their parents are oblivious to, especially because mansions are pretty big and the parents are generally too busy making money to raise their children properly.
Kid #1: Where is Katie from?
Kid #2: She's from Piedmont.
Kid #1: We should kidnap her and hold her for ransom then.
Kid #2: I don't think her parents would notice.