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.
Sexual intercourse usually involving humans.
Dealings with people, including commerce and trade.
Dealings between countries.
Communication, conversation.
To have sexual intercourse.