The term 'THUMBS-DOWN SIGNALERS' refers to people who express disapproval or dissent, often through a gesture of turning their thumb downwards. These people are also known as 'ANTIS', which is a five letter word that can be used to describe them. They are usually seen as being against something, such as a particular policy or idea. They may also be seen as being against a certain group of people, such as those of a different race or religion.