Welcher
A welcher is a player who fails to pay a debt, especially a gambling debt. He loses a bet and does not pay.
The simple explanation
If a player loses money and refuses to pay it, he is a welcher. It is a very bad reputation to have, and games usually stop inviting such a person.
A closer look
Poker has a strong code about payment: a player is expected to pay what he owes, and in private games a verbal bet is often as binding as a bet with chips. In casinos, players must show money before play, and cannot play on credit unless approved. A welcher can be banned, and in some places he can face legal action. Reliability about money is a basic part of a good reputation.
A practical example
A player loses a $500 bet in a private game and refuses to pay. The others call him a welcher.
Full explanation
A welcher is a player who fails to pay a debt, especially a gambling debt. He loses a bet and does not pay.
A welcher is a player who does not pay a debt.
The word is used about gambling debts.
He loses his reputation and may be banned.
Reliable payment is part of poker etiquette.