Pitch.

It was the go-to cardgame in high school. Nothing to do during study hall? Play Pitch. Finished with lunch early? Play pitch. Clueless substitute teacher? Play pitch. To this day when I hang out with my high school friends we always end up playing a few rounds. Myself and five others have rented a lakeside cabin for an entire week later this month (), and I have no doubt that Pitch will occupy a good 20% of all time spent.