Chip Dumping
Chip dumping is intentionally losing chips to another player, usually as part of collusion.
The simple explanation
In chip dumping, one player deliberately loses a pot to a partner. The chips move from one stack to the other without a real contest. It is forbidden in poker because it is a form of cheating, and online sites ban accounts that do it. If you are not sure whether a play is suspicious, don't accuse anyone at the table. Report your concern with the hand number to the site.
A closer look
There are two common motives. In a tournament, players may want to shift chips between friendly stacks. Online, chip dumping can be a way to transfer money from one account to another and, in the worst cases, to launder funds. Sites look for unusual patterns such as one player folding strong hands or making odd bets against the same opponent again and again.
A practical example
Two friends sit at the same online table. One keeps raising, the other keeps folding good hands, and over several hands chips move from one account to the other.
Full explanation
Chip dumping is intentionally losing chips to another player, usually as part of collusion.
Chip dumping is a form of collusion in which one player intentionally loses chips to another. The two players are working together against the rest of the table, even though the hands look like normal poker.
The practice is banned in every serious poker room. In tournaments it distorts the results and can give one player an unfair chip lead. In online play, a player can use it to move money between accounts, which is why it is linked to fraud and money laundering.
Detection depends on pattern analysis: sites look for plays that cost a player money in a way honest play does not explain, for example making a large call with a hand that cannot win. Repeated contact between the same accounts is also a sign.
Players who suspect chip dumping should report it to the room’s support team with the hand histories. Rooms can confiscate funds and close accounts when it is proven.