Sex with a lot of use of force and little sensitivity, caring or loving. Brutal sex may involve shoving, pushing, choking or throwing your partner or being thrown by them. There may be pain.
Brutal sex that is non consensual may be Rape or Sexual Assault.
DSK had consensual but brutal sex with Tristane's mother who claims DSK took her with the vulgarity of a soldier.
After brutal sex on the wedding night the young bride wept as she realized that she had married a cruel man who cared for little but his own gratification.