From the name of the swimsuit company, Speedo, which first designed and manufactured swimwear in Australia that was briefer and sleeker than most other swimwear then available.
Speedo (plural Speedos)
- A tight fitting swimsuit, especially commonly worn by competitive swimmers and divers. For males, usually implies a brief or bikini style swimsuit.
- You can tell the serious swimmers: they're the guys wearing the Speedos.