If something is spored, it has been spread or scattered in many places, like seeds from a flower or dust from a broom.
Spored things are all over the place, like when you spill a lot of marbles on the floor.
Examples:
The spored seeds grew into many flowers.
The spored dust made the room dirty.
The spored toys were all over the room.
The spored confetti covered the ground.
The spored glitter was all over her clothes.
The spored leaves covered the whole yard.