"Go bail on" is a phrase that essentially means to abandon or leave someone or something in a difficult or risky situation. There are several synonyms for this phrase that can be used to convey the same meaning, based on the tone or context of the sentence. Some common synonyms for "go bail on" are "abandon", "forsake", "desert", "leave in the lurch", "pull out", "duck out", "back out" or "shirk responsibility". These words can be used interchangeably depending on the context of the sentence and the intended meaning. Be sure to use the right synonym to communicate your message accurately.