"Made muck of" is a phrase which means to mess up or ruin something. When searching for synonyms for this phrase, various options come to mind including "botched," "bungled," "messed up," "wrecked," "mangled," "sabotaged," "ruined," "destroyed," "fouled up," "disrupted," and "derailed." These words all refer to the act of making a mess of something or bringing something to a state of disarray or ruin. While there are many synonyms available, the usage will depend on the context and severity of the situation. Nonetheless, these words provide options to express the feeling of disappointingly ruining something.