otacon 

A word formed by combining "wordOtaku/word" and "Convention". Dr. Hal Emmerich, the engineer who was the team leader in the Metal Gear Rex project, uses this word as his nickname.

Call me Otacon.

otacon by FROGGER June 17, 2003

otacon 

The partner of ex-US soldier Solid Snake in their international anti-terrorist activities. Otacon provides operational support, while Solid Snake physically executes the missions. Otacon's real name is Dr. Hall Emmerich. He first appeared in the video game Metal Gear Solid.

"Are you there Otacon? This is Snake." -Solid Snake

otacon by Nicolai July 2, 2004

otacon 

combining the words "otaku" (as in someone who likes anime and sci-fi) and "convention" (as in a gathering of people under one base intrest... mostly nerds). the name of a conneticuit based sci-fi/anime/comic convention, that was used as the alias of Dr. Hal Emmerich in the metal gear solid series of games.

although otacon is an invaluable sidekick and amazing hacker for solid snake in MGS, he's a pants wetter and a bit of a crybaby.

guy 1: d00d LOLOMGWTF???!!!1111one! i'm lyk going 2 cosplay @ teh Otacon dis year LOLOMGWTF?!!!

me: really? i'm gonna sniff coke off the blade of a knife.

otacon by tofubot November 4, 2004

otakon 

Largest anime convention on the East Coast of the USA. Known for its annual expansion to engulf the entire Baltimore City Convention Center. Also known for batshit crazy lines and the large volume of cosplayers and other curious types who invade the city and amuse and/or terrify residents and eat all the food at the nearest fast food joints.

Lasts three days in July or August and is usually followed up by exhausted and giddy blog posts. Notable events at the 'kon are the anime music videos, the masquerade, the rave, and in recent years concerts held by Japanese musicians such as L'Arc~en~Ciel.

Otaku A: OMG did you see the line for the Laruku concert? It wrapped around entire city blocks!
Otaku B: No I didn't see it... I was IN IT. >:O

otakon by Firebottle December 12, 2004

Otacore 

A music genre made up of songs heavy origins or basis in fan communities, such as those for anime. A large portion of this genre is made up of J-Pop.

My buddy: “The hell is that”
Me: “Otacore. It’s basically anime music”

Otacore by moshpitfuneral December 6, 2019

Otakon 

Referred to on its website as "the convention of the otaku generation," Otakon began in 1994 as a small covention in PA. Today it calls both the Baltimore Convention Center and 1st Mariner Arena home for one hot summer weekend. It is now the largest anime convention on the east coast, and the second largest in the country. Otakon attracts visitors from around the country and guests from halfway around the world.

Whatever you do, don't go to Glomp Alley...

Otakon by RandomSegaFanboy April 30, 2005

Otacunt 

The female version of an otaku.

Have you heard that girl inserting random Japanese words in an English conversation ? What an otacunt.

Otacunt by Yaban May 29, 2008