Vibrator (device designed to stimulate a woman's genitals).
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.
The sexual technique of maintaining a high level of sexual arousal for an extended period of time without reaching orgasm.
A technique involving the placement of the edge of the climbing shoe on a sharp hold.
The operation of shaping or dressing the edge of anything, as of a piece of metal.
Anything that forms, defines, or marks the edge of something.