Tongue bifurcation, splitting or forking, is a type of body modification in which the tongue is cut centrally from its tip to as far back as the underside base, forking the end.
^James, A. W., Culver, K., Hall, B., & Golabi, M. (2007). Bifid tongue: A rare feature associated with infants of diabetic mother syndrome. American Journal of Medical Genetics, Part A, 143(17), 2035–2039. https://doi.org/10.1002/ajmg.a.31877
^Siddiqua, A., Abubaker, P., Saraswati, F. and Thakur, N., 2015. Bifid tongue: Differential diagnosis and a case report. Journal of Oral and Maxillofacial Surgery, Medicine, and Pathology, 27(5), pp.686–689.