Informal men's underwear; specif., esp. formerly, men's one-piece long underwear
Origin of BVDsfrom B.V.D., trademark from Bradley, Voorhees and Day, manufacturers
- (informal, initialism) A type of men's long underwear.
- To make clear the exact quantity being discussed may require the use of "pair of BVDs" or "(however many) pairs of BVDs".
from the initials of an early manufacturer: Bradley, Voorhees & Day