Nack-Bag
Combination of the two words Nacker and Shite-bag commonly used in the North Dublin area. It first became popular in Coolock, a town in Dublin 13.
Person 1: He looks like a nacker with that haircut!
Person 2: It looks like a shite-bag
Person 3: He’s a nack-bag!
Person 2: It looks like a shite-bag
Person 3: He’s a nack-bag!