A very specific type of douchebag. Usually they can be seen constantly smoking from a vape pen all day, and they drive shitty cars with subwoofers, fancy rims and any other misappropriated car mod. On their downtime they're usually drinking monster energy drinks and playing call of duty. Most of them are unemployed.

a jabroney is someone who is a kook or is trying to look cool by doing something very retarded

To be an asshole