The activity in question constitutes a physical interaction with a pillow, characterized by rhythmic thrusting movements. Such actions can sometimes be observed in contexts involving exploration of physicality or as a manifestation of pent-up energy.
Understanding the reasons behind this action can offer insights into individual behavior. It may serve as a means of self-soothing, a way to explore feelings, or simply a physical outlet. The behavior is not new and has been observed across various age groups and developmental stages.