Slow roll
When a poker game reaches a showdown, players, at times, delay the showing of hands to allow other players to go ahead and show their hands first. When holding a hand that is likely to be the strongest of all the hands in the showdown, a slow roll is considered to be poor etiquette as it tends to give the weaker hand-holder a glimmer of hope that says that the slow roll player might have the weaker hand and is therefore, deferring the showdown.
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