In Thai, this dish is called Hoi Jor and is made of crab and chicken. The main meatball part is ground chicken and usually, a big chunk of crab meat is added to the middle of the meatball. This is very popular and can be eaten with or without rice.
It usually comes with a sweet and tart plum sauce in restaurants and if a normal eatery then the BBQ chicken sauce. This is a children's favorite because it can be eaten as a finger food. Hoi Jor is also popular amongst Thai social drinking meals because of the same reason.