In reality, jabroni is another way to say zamboni. Zamboni gets to be rather lame after long usage, but jabroni never does.
Jabroni can also be used to describe moron's who suck a lot of dick.
n. A person who is one of the coolest and elite people that hang out on the IRC network of Sysnode.
adj. Used to describe how radical, awesome or cool something can be.