What does 2 mean in Crazy Eights?

What does 2 mean in Crazy Eights? Draw 2. Playing a two forces the next player to draw two cards, unless they can play another two. Multiple twos “stack”; if a two is played in response to a two, the next player must draw four.

Draw 2. Playing a two forces the next player to draw two cards, unless they can play another two. Multiple twos “stack”; if a two is played in response to a two, the next player must draw four.