"Hi there...I'm from the Continuity IRA"...lol....."I used to be with the Existential IRA"
There was even something called the Irish People's Liberation Organization, whose sole purpose for being was to obliterate the Republican Socialist Movement, which had given birth to the INLA.
Eventually, it spiraled into what was basically a street gang, which was funded via the sale of illicit narcotics.
The Provisional IRA put an end to them by wiping out their entire membership in Belfast.