The term "eightysix" is commonly used as a slang term for getting rid of something or someone. There are several synonyms for this term which can be used to convey the same meaning. Some of the popular words which are used as synonyms for "eightysix" include discard, eliminate, remove, banish, reject, terminate, expel, dismiss, evict and exclude. Each of these terms have a slightly different connotation and can be used depending on the context and situation. While these words may have different definitions, they all convey the same idea of ending unwanted association or getting rid of something.