glue sniffing [Gk, gloios + ME, sniffen] , the practice of inhaling the vapors of toluene, a volatile organic compound used as a solvent in certain glues. The glue is squeezed into a plastic bag, which is then placed over the nose and mouth. Intoxication and dizziness result. Prolonged accidental or occupational exposure or repeated recreational use may damage a variety of organ systems. Death has resulted from asphyxiation and heart failure. See also huffing, inhalant abuse.