a b-string is closely related to the G-string in the sense that it holds genitalia with a string. This specific string holds the breast in the same manner a G-string for the lower regions.
by yumyumyumsocksyum October 18, 2017
Items in your underwear collection that are not suitable for special occasions, and are otherwise ratty underwear that you wouldn't want anyone else catching sight of.
I'm staying in tonight and there's no chance of getting laid, so I'll just grab a pair of b-string underwear.
by parkslump June 30, 2010