Paigon basically means enemy.
However
people will call someone who’s simply being annoying a paigon.
/pay-
gun/ or /pay-gon/ depending on accents.
Paigon is essentially part of the UK
slang developed from Jamaican Patois (Patwa).
The American equivalent to paigon is the word opp.
Paigon is also often spelt as pagan.
Pagan is a word relating to opposing religions however it still is linked to the same meaning.