The phrase "hadst bone pick" is an idiomatic expression that means to have an issue or complaint with something or someone. It can also mean to have a disagreement or a score to settle. There are several synonyms for this phrase that can be used to convey a similar meaning. Some of these synonyms include "had a problem with," "took issue with," "had a gripe with," and "had a quarrel with." These phrases can be used interchangeably with "hadst bone pick" depending on the context of the situation. Whether it's a personal or professional issue, these synonyms can help to convey a clear message when expressing discontent or disapproval.