Mulligan, Gerry Syllabification: (Mul·li·gan, Gerry)Pronunciation: /ˈməligən/Entry from US DictionaryDefinition of Mulligan, Gerry (1927–96), US jazz baritone saxophonist, composer, and bandleader; full name Gerald Joseph Mulligan. He is most often identified with cool jazz. Mulligan, Gerry in other Oxford dictionaries Definition of Mulligan, Gerry in the US English dictionary