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Hiro Syndrome 

\ˈhir-(ˌ)ō ˈsin-ˌdrōm\ (noun)

1. An infrequent, but nonetheless lethal, psychological occurrence in a male character from any of a variety of TV media, particularly those found in Japanese anime, in which the character in question experiences a drastic and negative change in personality due to the on-comings of a female character, or in order to gain a female character's interest or attention. This sudden change in behavior can lead to a falling-out with any number of friends, peers, or companions; resignation from or disinterest in a formerly favored career track; moodiness or downright cruelty; and, in general, the taking of sudden and drastic actions that may work as a plot device but are otherwise completely out of line. While these alterations in a character's attitude are usually temporary, they can, on instance, ruin a character forever. If the character in question is a "fan favorite," then his sudden change for the worse is all the more upsetting to any dedicated fan. The term originates with the character Nakano "Hiro" Hiroshi of the anime Gravitation, and how in his romantic pursuit of the character Usami Ayaka, he turns into what many fans consider a complete and utter douche, and takes his unrequited feelings out on his bandmates and friends.

2. When a male anime character previously assumed as homosexual abandons all prospects of a relationship with a male because of the influence of a nearby female, enormously disappointing the avid BL fan.
"Wow. First Spike was a total asshole towards Jet, then he abandoned his nakama without even thinking."
"It's because Spike wants to find Julia so badly. He must have serious Hiro Syndrome."
Hiro Syndrome by ack-gabbit November 20, 2009
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Hiro Syndrome 

When a guy in anime, usually a well-loved or attributed character, goes after a girl who doesn't want him, whose rejection makes him act like a total asshole. Usually applies to gay men in Boys' Love anime who act all hetero over one specific girl, much to fans' dismay; however, it can also apply to canonically heterosexual males or males in non-BL anime when fitting the criteria of NICE GUY TURNED RETARDED THANKS TO BITCH. Often used as a plot device in fan fiction.
"Wow, did Steve totally just ditch his best friend Michael for Mikayla or what?"

"He's only acting like a jerk because of Hiro Syndrome."

Hiro Syndrome 

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?"
Hiro Syndrome by QUACK*QUACK November 18, 2009

Hiro Syndrome 

When a nearly-flawless male character in any form of media (usually a well-liked character or even the fanbase favorite) has a sudden change in personality as a result of a relationship with a female character. This change in personality is "a turn for the worse," making the character unwelcome in the media, and often unliked by the majority of fans.
"I don't get it! Hiro's acting like such a dick just because of that bitch Ayaka!"
"Oh, it's because of Hiro Syndrome."
Hiro Syndrome by TRAW!!! November 20, 2009
More from Urban Dictionary

pod person 

A person pretending to be something they aren't, or an impostor. This is inferred because of the old alien movies where alien pods appear on earth and the "pod people" dispose of the humans and slowly reproduce the bodies, pretending to be humans.
The pod person was pretending to be my father, but I knew that he was an alien when he acted differently than my father ever would have.
pod person by Christopher M. May 9, 2005
Word of the Day on November 10, 2026
A dead drop is a location used to secretly pass items between two people, without requiring them to meet.

Spies have been known to use dead drops, using various techniques to hide the items and to signal that the drop has been made. Drug dealers use this as well.

A common place is to duct tape the item to the underside of a toilet cover in a public restroom.

A signal is sometimes used as well to indicate there is something to pickup, like a pile of stones in a certain formation. After checking the drop the signal is removed.
"The dead drop is the restroom toilet at the Gulf station at the corner of Commercial Ave. and Georges Rd."
dead drop by rubberroom July 23, 2008
Word of the Day on November 9, 2026

No Surprises Wedding

A "No Surprises Wedding," or NSW, is a wedding invitation designation that tells attendees that there can be no unplanned announcements, engagements, events or speeches at the wedding - all actions must be pre-approved by the couple. Anyone who performs an unapproved "surprise" will be asked to leave the wedding early.

This designation comes from Reddit, where so many stories of bad wedding behavior indicated a need to communicate expectations for the wedding behavior of attendees.
You are cordially invited to the nuptials of Brian and Tom on October 31 at noon.

Please note that this wedding is child-free (under 10) and a No Surprises Wedding (NSW). Reach out to wedding planner Sami Smith to request approvals or exceptions; please note that exceptions will be rare. Limited child care for under-10s will be available. All approvals will be noted and included in planning. Unapproved, or surprise exceptions, will result in guests being asked to leave.
Word of the Day on November 8, 2026
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