Is it supposed to be a play on inner/in-ear? Cause if not, they missed out.

I used to run a subreddit /r/EustachianTubeClick

This usually happens because there is built up pressure in your eustachian tubes. Me and people in that sub are able to open theirs on command. Its a super power.

I tried re-creating it here on lemmy the other day but the Create New Community button circle just kept spinning :(