To have sexual intercourse.
Of a man, to have sexual intercourse with (someone), especially in a rough manner.
To acknowledge by saying "roger".
An act of sexual intercourse.
Received (used in radio communications to acknowledge that a message has been received and understood)
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.