BOB

From Fresh Dictionary

See also Bob, bob

English

Etymology

Acronym, fortuitously spelling out the male given name Bob in the case of the humorous colloquial definition.

Acronym

BOB

1. (humorous, colloquial) Battery-operated boyfriend (that is, a vibrator).
2. (stamp-collecting) Back of the book; denoting stamps that are not part of the regular collection but are displayed separately, e.g., tax stamps, court fees, duck stamps, etc.