To strike or collide with something.
To have sexual intercourse (with).
To experience sudden and severe fatigue in an endurance sports event due to glycogen depletion.
To hit something with the front of the board, especially in midair.
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.
An act of sexual intercourse.
To perforate with a trephine.
To use a trephine during surgery.
A surgical instrument with a cylindrical blade used to remove a circular section of tissue, f.e. bone or cornea; a trepan.