1. Noun

   mountain where old people were abandoned (according to legend)

2. position or division in a company to which an old and ineffective person is transferred

3. women's college

   Obsolete termSlangDerogatoryused in the Meiji and Taisho periodssee 女子大学

Also written 姨捨山【うばすてやま】ubasuteyama、姥捨山【うばすてやま】ubasuteyama