"Full of piss and vinegar" is an informal expression that means being full of energy, enthusiasm, and vigor. However, this phrase may not be suitable for professional settings. Instead, there are several synonyms that can be used to convey the same idea without offending anyone. Some of the alternatives include "fired up," "revved up," "full of life," "full of beans," "charged up," "gung ho," "pumped up," and "brimming with enthusiasm." It's always important to choose the right vocabulary, depending on the intended audience and context of the conversation. These replacements for "full of piss and vinegar" can make conversations more polished, as well as effectively convey the same meaning.