Jirjahn Share definition Flag Jirjahn is a word that has evolved out of the more commonly used 'Pirjahn' (a Jamaican Yardie term). 'Man, der be bare Jirjahns in dis neybow'ood lately. Rasclaat!' Jirjahn by Felix, Rory, Hugh December 26, 2007 0 0 Get merch Get the Jirjahn mug. Buy Now — $32.95 See more merch