The term originated in the US (1860s) and refers to the members of the American branch/chapter of the Irish Republican Brotherhood founded in Ireland. For Irish-Americans, the term signifies respect, loyalty and love for ones heritage. It is the highest honor for an Irish-American to be referred to as a Fenian or a “Fenian Son”.
by JJ Smith February 7, 2008

Also known as the Fianna, a brave group of celtic warriors of olde who were led by the Irish Hero Finn Mac Cumhail.
by GueethePagan April 16, 2005

by Wilhelm January 25, 2004

Something that is used to describe an Irish man but Glasgow celtic (British) fans like to pretend to be
by Order number 1690 November 29, 2021

Used by people not living in Ireland or Northen Ireland to offend the inhabitants. If the person being abused is a Catholic then he will be offended that someone not of his blood is calling him thus and is most likely to twat the offender. If aimed at a protestant (usually from Northern Ireland) then he will be vexed by the fact he is being compared to a Fenian and is most likely to twat the offender.
by Rikki Sixx May 13, 2005

The Fenians were members of the Irish Republican Brotherhood (IRB) in Ireland in the 1860s. They are essentially the pioneers of modern terrorism, and used violent methods in order to gain what they wanted - in this case they wanted Ireland to be made a Republic, separate from Britain and with their own Parliament.
by oreosandlemons October 22, 2014

by Faxx April 9, 2020
