I used to play this all the time with my brother and other neighborhood kids. Especially in the summer. It’s an oldie, but a goodie. I will endeavor to teach the kids to play this tomorrow.
Crazy Eights is a game for two or more players, in which the object is to get rid of the cards in your hand onto a discard pile by matching the number or suit of the previous discard.
There is a huge number of variations of this game, and many alternative names. It is sometimes called Crates, Switch, Swedish Rummy, Last One or Rockaway. In Germany it is Mau-Mau; in Switzerland it is Tschausepp; in the Netherlands it is Pesten. Some British players call it Black Jack, which is unfortunate as it can lead to confusion with the well-known American banking card gameBlackjack.
More here: http://www.pagat.com/eights/crazy8s.html
And here is a cool youtube tutorial