It's a psychological concept used to approximate someone's psychometric intelligence, which has been shown to be useful in predicting job Performance and various measures of academic success. The popular, but ancient, method of calculating IQ, or intelligence quotient, was to divide someone's mental age by their actual chronological age. Contemporary methods involve plotting one's relative score on a distribution score, derived from a norming group which is usually stratified by chronological age, which allows individuals of all ages to have their IQ's evaluated.

It's tended to be used as a conversational last resort, which is more typical among those with a IQ worth mentioning, or in some cases, rights to brag. Those mentioning an IQ above 140 are usually easily identified as the classical Braggart; Less then .4% of the population are able to earn an IQ this high on commonly accepted IQ tests.

Also, Communication difficulties and other academic or learning problems doesn't mean that someone MUST HAVE A low IQ, Albert Einstein being the common example. I happen to be another.
My IQ is 145, or at least that's what the graduate psychometrist told me. No really. I'm not making this up. Despite my admonition in the definition, I, this definition's writer, have an IQ above 140.

Like anyone cares though. Haha.

I'm pretty sure that's going to earn a couple of thumbsdown.
by Andrew Wheeler April 19, 2006
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A measure of your intelligence

0-50 Retard

51-70 Idiot

71-90 Under Average

91-110 Average

111-120 Above Average

121-140 Very Smart

141+ Genius
Retard: "My iq is like the biggest number I know, seven!"
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A made up, fictional measurement of intelligence invented by Youtubers to clickbait viewers, And Rick and Morty fans to rub their intelligence in others faces.
Man: I just had a 10000 IQ play in Roblox: escape Spongbob Obby!
Woman: IQ doesn’t exist, idiot
by ShmexySocks January 6, 2021
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IQ = Intelligence Quotient
A measurement of a persons logical ability and ability to identify and understand logical patterns. Although much-debated these abilities correlate to a lot of common things, such as proficiency for higher education (an average PhD has an IQ of 125).

The scale was originally based on mental age divided by actual age but is nowadays based on a logarithmic curve which orders IQ by percent (about 2/3rds of the population lies between 85 and 115 and about one in 1000 has 150+). The average is 100.

The importance of IQ should however not be overstated since social skills, personality, work morale and other factors are at least as important in a working environment.
IQ is a good measurement for how much you enjoy brain-fapping.
by eeoid April 19, 2008
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n., abbr. of Intelligence Quotient. The figure that results from taking an IQ test, which is a scientific, accurate, and objective measure of one person's ability to take IQ tests.
"I has a high IQ."
by Shane Killian May 13, 2004
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My IQ is 150 but I ain't done shit to show for being smart.
by dr. z November 26, 2015
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ˌE-CK
noun
short for outsmarting your opponents
"I outplayed them bitches with my high IQ"

"get out here with that low IQ shit"
by Henta1nokami August 15, 2018
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