Swords dance is a move in Pokemon where your opponent does no damage, but doubles their attack power, allowing them to deal twice as much damage every subsequent turn so long as that Pokemon stays in the battle. A small decrease in damage dealt now in exchange for more damage dealt later.

Most children play Pokemon with a simple goal to attack every turn, and don't pay attention to what non-attacking moves do. They view all such moves as a waste of a turn, represented by the bored spongebob. Adults playing Pokemon better understand strategy, and realize that the opponent becomes much more threatening after using swords dance.