What does "Not in My Backyard (NIMBY)" mean?

NIMBYism is a term that is used to describe opposition from neighbors to the development or acquisition of a group home occupied by individuals with special needs. Autism Speaks has compiled some important facts about group homes, potential community concerns new homes may encounter, and resources to combat NIMBYism.    http://www.autismspeaks.org/family-services/adult-services/housing-and-residential-supports/combating-nimbyism?utm_source=social-media&utm_medium=text-link&utm_campaign=espeaks