Top definition
Even dumb people have found a way to abbreviate. IDN stands for "I don't no." An educated person says "I don't know," which can be abbreviated to "IDK." If you see someone that types "IDN" on a regular basis, you know that their IQ isn't very high.

NOTE: If said person is dumb enough to use IDN, I doubt they'd take the time to use capitals, making it "idn."

You may also see "IN", or "in," which can translate into the opposite: "I know," or to an educated abbreviator, "ik. "
First dumb person: hey britney do u like jake
Second dumb person: idn i here hes pretty dum
First dumb person: but hes so hott
Second dumb person: ya in lol

Translation:
First smart person: Hey, Britney, do you like Jake?
Second smart person: I don't know, I hear he's pretty dumb.
First smart person: But he's so attractive.

Second smart person: Yeah, I know.
by JacksonCampbell July 18, 2010
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Aug 11 Word of the Day
A phrase to describe someone who is cognitively degenerating. Synonym of "going off the deep end". Can have varying degrees of severity.

Reference to the song "Hey You" by Pink Floyd. The line "and the worms ate into his brain" makes no sense in an otherwise linear and literal narration throughout the lyrics.
"My boyfriend has a total case of brain worms. He told me the cat was bugged so the Feds could listen in on us having sex..."

or

"You totally stumbled over that entire sentence. Can't speak English all of a sudden? What, do you have brain worms?"
by _Jez_ October 03, 2009
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2
Infant Dick Nipple Syndrome - a woman who has bewilderingly lengthy nipples, comparable to that of a male infant's genitalia
"Yo watch out for her, she has IDNS!"
by Loudpack Landry April 29, 2018
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4
i drive now....................
idn cuz i jus got my permit.
by Katti July 17, 2006
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5
Person 1: When will we pour chocolate syrup on each other?
Person 2: IDN
by Shay Shay July 06, 2003
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6
I didn't notice.
Billy: Mate you're not wearing shoes.
Jimmy: Like idn. Urgh
by Nate Everden December 09, 2015
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