Inever 

to describe something that has not been done in a long period of time, usually such thing was done quite often.

Some says, "hey, dude i haven't seen you inever."

inever refers to the fact that he hasn't seen in a long period of time.

Inever by Pojo5150 November 24, 2009

Inverse Intoxication Principle

The principle stating that people who say that they are "soo drunk right not" are usually fairly sober, while people who say they are "not that drunk" are usually highly intoxicated.

Max: Dude, I swear I'm not that drunk.

Sam: You just pissed in our trashcan asshole. I think you're pretty fucked up right now.

Kyle: Yeah he's gone. Perfect example of the Inverse Intoxication Principle.

Inverse Intoxication Principle by JC Swaggg November 25, 2012

The Law of Inverse Ninja Strength 

When confronted by ninja(s), the individual ninja will be far more powerful than a group of ninjas. To see the effectiveness of a group of ninjas simply use the equation power= 1/n, where n is the number of ninjas

Don't worry about the group of 1,000 ninjas, worry about the single guy, according to The Law of Inverse Ninja Strength

The Law of Inverse Ninja Strength by jamundertoast December 17, 2010

Invertebro 

Spineless men afraid to stand up to POTUS even when he defends Nazis.

Shamelessly stolen from the Twitter feed of @ohnoshetwitnt

Paul Ryan and Mitch McConnell are invertebros.

Invertebro by Shee-Ra August 16, 2017

Inverted Date 

A date that begins with sex, and then proceeds to the traditional dating activities (e.g. dinner, drinks, show, dancing); as opposed to the traditional order of dating where the activities lead up to the ultimate objective of sex at the end of date. Causes much confusion as the original purpose of the date no longer seems to exist.

She surprised me with an inverted date; I was totally confused and disoriented for the rest of the night.

Inverted Date by RayRayBeLove November 21, 2013

Negative Reality Inversion 

A Negative Reality Inversion (NRI) a term originating from the series "The Young Ones" and is actually technobabble.

A Reality Inversion would be the symmetrical inversion of reality. Making it negative would actually cancel it out, leaving you with reality.

NEIL: Anybody watching that must've thought it was a negative reality inversion.

*A man and woman are making out in the shadows
WOMAN: Cor, that looked just like a negative reality inversion, didn't it?
MAN: Yes, it did, a bit.

*They turn their attention back to each other

Negative Reality Inversion by DecoyDucky May 4, 2010

great supine protoplasmic invertebrate jellies 

The insult given to the gathered members of the London Assembly by London Mayor, Boris Johnson

B. Johnson: "Are you saying they're abdicating their duty to scrutinize me?"
"Are you saying that they haven't the guts to put the questions to me?"
"Great supine protoplasmic invertebrate jellies!"

great supine protoplasmic invertebrate jellies by Striatedbrah August 16, 2013