Basically just flavored sugar. Comes in many different colors.
Often known to give grade schoolers a sugar high. Middle schoolers ocassionally sniff pixiesticks through their nose, acting as if they are cool in doing so. This usually results in a horrible headache.
Kid 1: Hehe! I sniffed pixiesticks. I'm so high!
Kid 2: Shut the hell up.
A crude, satirical cartoon show on Comedy Central, created in 1997 by Trey Parker and Matt Stone. South Park shows a day in the life of 4 foul-mouthed grade schoolers and the townsfolk of a white-trash, redneck mountain town. The show is notorious for being one of the very first mainstream cartoons geared directly towards adults.
The show is currently running into its 9th season, and was also made into a movie, entitled South Park: Bigger, Longer, and Uncut.
Come on down to South Park and meet some friends of mine.