Having up a tree is a phrase that means stuck or stranded in a difficult situation. Some synonyms for this phrase include being in a tight spot, being in a fix, being in a bind, or being caught in a dilemma. Other similar phrases include being in a pickle, being between a rock and a hard place, or being up against the wall. Whatever the phrasing, being having up a tree or stuck in a difficult situation can be a challenging experience. However, knowing that there are synonyms and alternative phrasings for this situation can help make it easier to express and understand.