You've Got Crabs

The hilarious card game You've Got Crabs contains 78 cards with which you try to collect as many points as possible. Each player gets four cards and starts swapping cards on the table until he has four of the same cards. At that point, you try to signal a prearranged signal to your teammate, who then calls out You've Got Crabs. If it is correct, you get a point. If not, you lose a point. When you see the other team signaling then you can also yell You've Got Crabs and thus steal their points!