I work in Tokyo. According to my work mates, wearing one could be seen as a form of bragging, especially some decades back. There's even a word for "speaking a

I work in Tokyo. According to my work mates, wearing one could be seen as a form of bragging, especially some decades back. There's even a word for "speaking a bit too fondly about one's girlfriend/lover/wife in front of others": 惚気(noro-ke).