"Get on the water wagon" is a phrase used to encourage people to stop drinking alcohol and start consuming water instead. There are several synonyms for this phrase that convey the same message. One such phrase is "stop drinking the hard stuff," which implies an end to alcoholic beverages. Another synonym is "take the pledge," which is commonly used in the context of temperance movements. "Abstain from alcohol" is a straightforward, yet effective phrase that communicates the same concept. Additionally, "go on the wagon" and "dry out" are commonly used to suggest a period of sobriety, with the former indicating a voluntary choice to abstain and the latter typically used in the context of rehab or detox programs.