When someone leads you to believe that you have won a hand in poker, but then turns over a very strong hand.
"I was offended at the way Brad slowrolled me," Jim said.
"What did he do, exactly?" Joe said.
"At the showdown when I turned over my cards, he didn't turns his up after seeing my hand. While I was collecting the chips, he turned over the nuts."
When playing poker the person with the best possible hand takes forever to call an all in. Not nice, generally only done by people who hate each other.
Player 1 has pocket aces
player 2 goes all in
player 1 waits the entire clock then calls at the last second
When a person seeking an answer is perpetually put off, usually by having to answer subsequent questions given consecutively, before his originalquestionmay be answered.
Before leaving, Fred's boss Allen executed a perfectslow roll maneuver, delaying Fred's departure by asking made up questions, the answers of which Fred had to find before Allen would allow Fred to depart.