DAHMER Meaning of DAHMER in English Dah ‧ mer, Jef ‧ frey /ˈdɑːməʳ, ˈdʒefri/ BrE AmE (1960–94) a US man who killed 17 men and boys between 1978 and 1991 and kept parts of their bodies in his home Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012