This is the currency code used in the ISO 4217 standard.
BOB (plural BOBs)
- (humorous) Vibrator (device designed to stimulate a woman's genitals).
BOB (not comparable)
- (philately) Back-of-the-book; denoting those stamps in a catalogue that are not used for the payment of regular postage fees, and are displayed separately in the catalogue after that listing; the division between these two groups varies with the publisher.