Meaning of Dexter. Latin-American name. In Latin-American, the name Dexter means-flexible. Other origins for the name Dexter include-Latin-American, English.The name Dexter is most often used as a boy name or male name. Latin-American Name Meaning-flexible.Origin-Latin-America.atin-American name. In Latin-American, the name Dexter means-flexible. Other origins for the name Dexter include-Latin-American, English.The name Dexter is most often used as a boy name or male name. Latin-American Name Meaning-flexible.