Hasbro is most commonly known for it's reference to child games for children under the age of 10. If you are eligible to play such games, you are considered a 'hasbro'. This basically is referring to someone being young, or under-aged.
"Yo, that club on campus is filled with mad hasbros"
by riot hysterics July 20, 2009
A hasbro, some sort of developer/programmer which fails at every attempt. Usually tries to get money out of people by using someone else's work and then claiming other's work. Loved by the idiots, hated by the developers/programmers.
Look at this hasbro, he tries to take donations for programs he didn't create.
by Ethereal Spy September 20, 2008