Definitions by FISHr

probo 

Gets its roots from the combination of "Pro" and "Hobo."
Either:
1. A homeless "street entertainer."
2. A normal person, with a job, who, in order to make extra money, facades as a homeless person.

Walk for a minute on any New York street and you are likely to find a probo.

Dude: "Hey, look at that hobo."
Dude 2: "That fucker works in the office across the street. What an asshole. He shouldn't take advantage of people like that. He's a probo!"

probo by FISHr October 17, 2006