Grinding is the act of two individuals rubbing hips together in a rhythmic motion. It is similar to dry humping but is often less sexual. It is frequently done on dance floors or other public or semi-public places. Typically, the term refers to contact with erotic intention while both participants are fully clothed.
Grinding can also refer to masturbation performed in a similar way. In this case the participant is clothed and grinding against an object like a pillow, sex shape, or couch. As the popularity of grinding rises, multiple manufacturers have crafted grinding-focused toys like the Orion VibePad 2, Liberator On a Mission, Rocks-Off Ruby Glow, and the Wild Flower Enby 2.