"Moustachio'd" refers to someone who has a moustache, and there are plenty of synonyms that can be used to describe this facial feature. Some common synonyms for "moustachio'd" include "bearded," "whiskered," "hairy-lipped," "furry-faced," and "mustachioed." Although these words have slightly different connotations, they all refer to the same underlying feature. Other possible synonyms could include "mustached," "facial-haired," or simply "moustached." Depending on the context, some of these synonyms may be more appropriate than others. For example, "bearded" might be a better choice for someone with a thick, bushy moustache, while "whiskered" might be a better fit for someone with a more delicate or finely groomed moustache.