stim
v.— «The common factor here is that the activities and interests that high-functioning autistic adults use to share their own pleasures and to relate to each other’s experiences are often the very activities that people try to eliminate in low-functioning autistic children: “stimming” on sensory fixations and perseverating on subject fixations.» —“RE: Purple fur” by SJU Autism and Developmental Disablities List Usenet: bit.listserv.autism June 12, 1992. (source: Double-Tongued Dictionary)