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.
An act of sexual intercourse.
Any minor collision or blow.
A condition of sudden, severe fatigue in an endurance sports event caused by glycogen depletion.
A bump on the head.
An animal call resembling "bonk", such as the call of the pobblebonk.
To have sexual intercourse (with).
To experience sudden and severe fatigue in an endurance sports event due to glycogen depletion.
To strike or collide with something.
To hit something with the front of the board, especially in midair.