A person who posts on social media their undying affection and steadfast devotion to a person with "different abilities" or disease even though they have little to nothing to do with that person in real life unless it's for a photo-op or social media post.
Patty's FB post: "Here's my beautiful & amazing little friend who lights up my world!!!" {Picture attached hugging"little friend" in wheelchair}
Outsiders: "That Patty really is amazing for all she does for disabled people!"
Family of the disabled person: "That Patti is a real Cause Clinger, huh? It's the first time we've seen her in two years, but she acts like she sees us all the time. Fake. Gross. Sad."