If you can, it sounds like a rumbling noise by your ears when you yawn or squint really hard.

5/9/2014 5:54:40 PM

https://en.m.wikipedia.org/wiki/Tensor_tympani_muscle#Voluntary_control

5/9/2014 5:58:27 PM

Yah

5/9/2014 5:59:26 PM

i think so.

5/9/2014 5:59:29 PM

I learned on reddit that everyone can do this because when you post a rare condition on an internet forum it turns out everyone has it.

5/9/2014 6:00:04 PM

I can and have wondered wtf i was doing to make that sound for years. Its the same muscle I flex to relieve ear pressure on airplanes.

5/9/2014 7:19:03 PM

^same

5/9/2014 8:46:41 PM

Is that your drangus?

5/9/2014 9:47:58 PM

I can as soon as I get more batteries

5/9/2014 9:59:13 PM

Yes. Yes I can!

5/9/2014 10:11:37 PM