Introverted Claustrophobia 

When an introvert is a large crowd and feels as if everyone is closing in on them.

Feeling overwhelmed or stressed in crowds or loud noise.

During that concert Nancy felt as if she had introverted claustrophobia.

Introverted Claustrophobia by Greyhound owl December 31, 2016

intronet 

Use of the world wide web (internet) as a network to create oportunities to introduce yourself to others.

The girl uses online dating sites as her personal "intronet"

intronet by Urban Stephen July 19, 2007

Introvertedness 

An easy hole to fall into, but hard to climb out of

I am descending into Introvertedness

Introvertedness by Introvertedness July 15, 2017

intraverse

A place that exists only in your mind. e.g. Your own little universe.

There's always interesting people to talk to in the intraverse.

intraverse by evilinnerchild November 27, 2015

introextrovert 

Someone who is partially introverted and partially extroverted. Known to be social and also antisocial at times, depending on mood.

She's an introextrovert. Last night she partied with us but tonight she's playing Halo 3 by herself in her dorm. Maybe she'll come out again tonight?

introextrovert by hannahlg October 25, 2007

introretrogestion 

A mode of eating popularized by Eric Cartman highlighted by jamming food into the rectum and deficating out of the mouth instead of vice versa. Eric won a $20 bet with his Jew-friend Kyle for proving that introretrogestion is humanly feasible.

Popcorn is one food that would be difficult to eat using introretrogestion.

introretrogestion by Condor September 22, 2006

Introversion 

(Antonym; Extraversion)

A preference for living in, and gaining one's energy from, one's inner world of thoughts, feelings and perceptions.

(noun of introversion=introvert)

Bob (an introvert) lives happily alone, distant from friends and relatives, and doesn't go out very often.

Introversion by Jonesey October 14, 2005