Bingo Calls: Rhyming Slang for bingo numbers - Kelly's Eye, Two Fat Ladies etc...
Blackout or Coverall or Full House: A pattern where you must cover the whole card to win.
Caller: The person who calls out the bingo numbers for the player.
Card: Your bingo playing card.
Chat Room: When playing online, an area where you can communicate with other bingo players. Often run by CM's (chat managers)!
Dauber: The marker that you use on your bingo card to mark off the numbers as they are called.
Early Bird Game: A bingo game that starts before another regularly scheduled game.
Free Space: The middle square of your bingo card. It's free every game and will count towards your winning pattern.
Game Board: The display board over your cards that shows you the balls in play.
Jackpot: What you're playing for!! A big prize usually awarded for achieving a set pattern (usually a full house) within a specified number of balls.
Pattern: Game are often divided up into "patterns" - for example play for the four corners, the middle line, and a full house would represent three patterns. More complex patterns are offered by a number of online sites.