Oh no! Another pinky thread.
I finally got curious and typed "what does wearing a pinky ring mean?" into google.
This showed up:
"Wearing a ring on the little, or pinky, finger of the hand can have any one of a number of meanings, some of which are mutually contradictory. It may also have no other significance at all beyond the personal preference of the wearer.
In the 1950s through the 1970s, wearing a pinky ring was sometimes used as a covert sign of male homosexuality. Judy Grahn in her book "Another Mother Tongue" writes that in 1959, the year she came out, that rings worn on the pinky were known as a secret way to communicate homosexuality.
American and Canadian engineers sometimes wear a steel or iron ring to signify oath-bound membership in an engineering fellowship.
Signet Rings and Aristocracy
The signet ring, a type of ring bearing a family crest and used to seal letters and mark other documents, was traditionally worn on the little finger. As a result, rings worn on the little finger became associated with aristocracy in general.
Members of organized crime are reputed to wear pinky rings as well. In more recent times, hip-hop artists with a "gangsta" style adopted pinky rings in imitation of their Italian-American counterparts.
Some people believe that wearing a pinky ring can bring the wearer luck. Gamblers, in particular, are prone to sporting one."
"Another Mother Tongue;" Judy Grahn; 1984
Order of the Engineer
The Iron Ring
"The New York Times;" Ba-Da-Bing! Thumbs Up for the Pinkie Ring; Jan. 23, 2000
And from a 2014 article on businessinsider, advice for men on how to wear rings fashionably:
The Pinky Ring
This is often the first choice for a man who wants to wear a “statement” ring.
Pinky rings have a couple of advantages: they don’t have religious or cultural associations in most cultures (unlike the ring finger), and, like rings on the fourth finger, they don’t touch or interfere with the index/pointer finger at all.
It also isolates the ring from your body a bit, making it more of an eye-popping statement. As a result, pinky rings tend to be among the “busiest” or flashiest of designs. It’s where you wear things when you want attention paid to them.
Oh. So, according to businessinsider, the man who wears a pinky ring has a large ego, the pinky ring is a 'statement'.
Well, ya know what they say about 'big' men with big egos....the same thing they say about the ones who drive big cars.