American Mahjong Guide

Terms

You'll hear a lot of new vocabulary at your first American Mahjong table. Here's what the most common terms actually mean — bookmark this page and check back whenever something in another guide isn't clear.

The Card
Short for the NMJL (National Mah Jongg League) card — the official list of valid hands and their point values, published every year. Most players keep a copy at the table.
Charleston
A set of passes at the start of the game, where you trade tiles with other players before anyone starts drawing and discarding. It's how you improve a weak starting hand.
Joker
A wild tile that can stand in for other tiles — though not on every hand on the card. There are 8 jokers in a standard set.
Wall
The stack of face-down tiles built at the start of the game. You and the other players draw from it, turn by turn.
Rack
The small tray each player uses to hold and hide their tiles during the game.
Pung
A set of three matching tiles, such as three 5 Dots.
Kong
A set of four matching tiles (jokers can often fill in), such as four Red Dragons.
Pair
Two matching tiles.
Exposure
A group of tiles (like a pung or kong) that you've placed face-up in front of your rack, usually after calling a discard, so the other players can see it.
Call
Claiming another player's discarded tile to complete a pung, kong, or quint in your hand, instead of waiting to draw it yourself.
Mahjong
What you call out when you complete a winning hand that matches the card — the word that ends the game.
Wall Game
A round that ends with the wall of tiles used up and no one completing a hand — no one wins, and in most groups the same dealer deals again.