What does the term "Slow Rolling" mean in poker?

What does the term “Slow Rolling” mean in poker?

Poker is a fun game with many seemingly contradictory ideas. On the one hand, lying, taunting and outright insulting other players is a regular part of the game. On the other hand, there are certain lines that should never be crossed. One of them is to move slowly. Basically, if you slow someone down, even if it’s unintentional, you’re likely to be spurned at your table, or at worst initiate a fistfight.