To scatter objects or waste materials in a disorderly manner. People often litter the park with plastic bottles and wrappers.
To give birth to a group of offspring at one time, typically used for animals. The cat littered in the barn last night, and now there are five new kittens.
To cover or be scattered over a surface. Broken branches littered the roadside after the storm.
To lay down bedding material for animals. They littered the stall with fresh straw before bringing the horses in.