Acoustic

1) An instrument that is not electric (Usually a guitar and instruments that have electric counterparts)

2) A Slang used jokingly as a substitute for the term "Autistic" That originated sometime in TikTok or somewhere else.

Guy 1: Yo dude, Do you have a guitar?

Guy 2: Yeah I have 2, One is Electric, One is Acoustic
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Guy 1: Look at this Osaka meme

Guy 2: she is so silly and acoustic.

by Mystei March 11, 2024

Acousticalness

The art of being acoustical

Dude did you see that guys acousticalness? It was huge!!

or

I wish I had more acousticalness in this music, it'd sound so much better

by Isaac500 March 30, 2010

acoustic

1. an instrument that isn't electric
2. autistic, although generally not used as an insult nor to describe an actual autistic person. usually used for when someone's being a dumbass

1. i have an acoustic guitar.
2. it took me 2 hours to buy this guitar because the cashier was slightly acoustic.

by anonym0u$e February 2, 2025

acoustic

it is said when someone does something really stupid. you call someone acoustic then they do something that's so stupid.

idiot - I love windows so much because its so hard to use. that's a good thing.
smart person with a brain - dude are you acoustic? wow your so dumb and macOS is better
idiot - what?
smart person- yea

by 584940493395874392034839394 March 11, 2024

acoustic

an autistic person

He plays acoustic
She's a lil acoustic

by MisterGIass October 22, 2025

Acoustic

According to the Urban Dictionary, 'acoustic' is an intentional mispronunciation of 'autistic,' and it is frequently used in response to actions deemed "ridiculously stupid or ignorant" by the commenter.

“Why did x do that? Are they acoustic?"

by Berryblast22 May 21, 2024

Acoustic

Someone who is silly, a goober perhaps.
Also blind.

Person: Why did he do that? Is he Acoustic?

by atrixblob October 15, 2023