This ancient Scandinavian rune means “intermittent.”
@Quinnypig I thought it meant “fight each other for the one available connection”, but maybe that’s from a regional dialect.

@dpnash @Quinnypig Apparently, there is no proof yet found that Denmark’s King Harald Gormsson was ever called Blåtand during his lifetime, as he died in 985 AD and the first BT mentions in writing dates back to 1140 AD, in the Roskilde Chronicle (https://en.wikipedia.org/wiki/Chronicon_Roskildense).

Source: article written by Dick Harrison (professor in history) at Lund University. I found the article in one of the big-name newspapers in Sweden, SvD (Svenska Dagbladet): https://www.svd.se/a/QVmKP/kommer-smeknamnet-av-kassa-tander

Chronicon Roskildense - Wikipedia

The article itself brings up where the nickname supposedly comes from, but all of the theories (things about the colour of his teeth, expensive blue clothing, etc) are deemed unlikely to be true, by the history professor.
@Quinnypig Doesn't it also mean "to take a long time; to lag behind" ?

@Quinnypig #alt4you Image of the Bluetooth symbol, a bindrune of the initials of Harald Bluetooth in the younger futhark after whom the technology was named.

This is funny.

@Quinnypig Out here, it means “Search for what your Bluetooth headset is connected to so you can turn it off and get the headset to pair with your computer for attending a Zoom meeting”
@Quinnypig It meant "go to far away and you will lose touch"

@Quinnypig Named in memory of king Harald the Intermittent, who would only talk to a new person after a surprisingly error-prone handshake procedure.

Some of his heirs learned to recall having shaken the hands of multiple people, significantly speeding up royal social events.

@Quinnypig you won’t full me that’s a moth
@Quinnypig well actually...

it's a combination of the runes for H (ᚼ "Haglaz") and B (ᛒ "Berkanan") - as the technology is named after the viking kind Harald Bluetooth (HB).

kind of cool.
@Quinnypig
No it isn't. It's actually a misunderstood tag by someone trying to impersonate the heavily moustached Spanish hero Zorro.
They turned it sideways and thought it looked like a stylized B.