Do you know why Bulma's family is named after undergarments?
It's just Toriyama's sense of humor, bear in mind that pre-Dragonball he made a name for himself drawing talking pieces of poop.
Bulma's name is a pun on the word "Bloomers" which is some kind of women's undergarment, Trunks and Dr. Briefs are pretty obvious, though in the manga it was never stated that "Briefs" was the family name, it's more of a FUNimation dub thing.
Toriyama also stated in an interview that if he actually gave a name to Bulma's mother, it would probably be something like Panty.