1 definition by QUACK*QUACK
When a totally awesome male character in a book or show starts acting very asshole-ish because of a girl or woman.
"You're just being a jerk because of that stupid Haruhi."
"What, do I look like I have Hiro Syndrome?"
"What, do I look like I have Hiro Syndrome?"
by QUACK*QUACK November 18, 2009