"Far right" is an ambiguous political terms which means one thing literally, but is used instead in a loose sense by liberals to mean something almost completely different - typically in an effort to disparage someone's character and/or position.
For example, Adolf Hitler is sometimes described as having been on the "far right". But in reality, he was the leader of the National Socialist Party, so he was really an example of someone on the far-Left. Similarly, he is sometimes described as "Fascist". However, in reality, there were no Fascists in Germany. Fascism was a political party in Italy, led by Hitler's fellow Axis leader Benito Mussolini.
The main difference between Hitler and other totalitarians (like the Josef Stalin of the Soviet Union) is that they were war enemies. The systems of government and economy they imposed on their respective empires had more similarities than differences.
Another group of people considered to be "far right" and "right wing" are white supremacists, Neo-Nazis, racist and anti-Semitic organizations this is mainly done to attribute racism with conservatism and prevent the people targeted by white supremacists from voting right wing and to keep them voting for leftists who stir up the lie that these hate groups are "right wing" because racism and Marxism are not conservative, but are both aspects of the far-Left.
In the US, Europe, and the Middle East opponents of democracy typically apply the term "far right" to anyone who criticizes their human rights record or plans to replace the free market system with socialism. The idea behind this sort of name-calling is to associate the critics with the "worst mass murderer ever" (i.e., Adolf Hitler). This is erroneous, if only because both Stalin and Mao Tse-Tung killed at least six times more innocent people. (It is argued, however, that Hitler was also responsible for all of the deaths from World War II, and thus is in the same league as Stalin and Mao.)