The term 'Black Balls' can be solved by the word 'EIGHTS', which is a 6-letter word. Eights is a card game that is also known as Crazy Eights or Swedish Rummy. It is a shedding-type card game for two to four players and is played with a standard deck of 52 cards. The objective of the game is to be the first player to get rid of all their cards. The game begins with each player being dealt five cards, and the remaining cards are placed face down in the center of the table. The top card is then turned over to begin the discard pile. Players must match the rank or suit of the card on the discard pile, and the first player to discard all their cards wins the game.