The expression "deuced it" has a connotation of misfortune, failure, or regret. There are several possible synonyms that convey a similar meaning, such as botched, messed up, bungled, flubbed, or screwed up. These words imply that something went wrong or didn't go as planned, often due to a mistake, a lack of skill, or an unexpected obstacle. Other alternatives to "deuced it" could include failed, fouled up, snafued, floundered, or fumbled. All these options suggest a sense of disappointment, frustration, or embarrassment, which might be applied to various situations, from personal endeavours to professional endeavours or societal matters.